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EC number: - | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is highly insoluble in water, hence indicating that aquatic toxicity is unlikely to occur
- the study does not need to be conducted because the substance is unlikely to cross biological membranes, hence indicating that aquatic toxicity is unlikely to occur
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
According to Annex VII, Column 2, Section 9.1.1. of Regulation (EC) 1907/2006, testing for short-term toxicity on invertebrates does not need to be conducted if “there are mitigating factors indicating that aquatic toxicity is unlikely to occur, for instance if the substance is highly insoluble in water or the substance is unlikely to cross biological membranes”.
Chromium, iron, titanium and zinc spinel and rutile can be considered environmentally and biologically inert due to the characteristics of the synthetic process (calcination at a high temperature of approximately 1000°C), rendering the substance to be of a unique, stable crystalline structure in which all atoms are tightly bound and not prone to dissolution in environmental and physiological media. This assumption is supported by transformation/dissolution data (Knopf, 2018) that indicate a very low release of pigment components at pH 6 and 8. Transformation/dissolution tests with chromium, iron, titanium and zinc spinel and rutile at a loading of 1 mg/L and pH 6 after 7 days resulted in dissolved chromium concentrations of 0.229 µg Cr/L, iron and titanium concentrations below the respective LODs of 0.035 µg Fe/L and 0.041 µg Ti/L, and zinc concentrations of 0.929 µg Zn/L. After 28 days at pH 6 dissolved chromium, iron and zinc concentrations amounted to 0.355 µg Cr/L, 0.532 µg Fe/L and 3.52 µg Zn/L, respectively, while titanium concentrations remained below the LOQ of 0.123 µg Ti/L. T/D tests at pH 8 after 7 days resulted in dissolved chromium and zinc concentrations of 0.2 µg Cr/L and 3.68 µg Zn/L, while iron and titanium concentrations remained below the LOD of 0.085 µg Fe/L and 0.123 µg Ti/L, respectively. After 28 days at pH 8 dissolved chromium, iron, titanium and zinc concentrations amounted to 0.314 µg Cr/L, 0.136 µg Fe/L, 0.022 µg Ti/L and 4.78 µg Zn/L, respectively. Thus, the rate and extent to which chromium, iron, titanium and zinc spinel and rutile produces soluble (bio)available ionic and other chromium-, iron-, titanium-, and zinc-bearing species in environmental media is limited. Hence, the pigment can be considered as environmentally and biologically inert during short- and long-term exposure. The poor solubility of chromium, iron, titanium and zinc spinel and rutile is expected to determine its behaviour and fate in the environment, and subsequently its potential for ecotoxicity.
Proprietary studies are not available for chromium, iron, titanium and zinc spinel and rutile. The poorly soluble substance chromium, iron, titanium and zinc spinel and rutile is evaluated by comparing the dissolved metal ion levels resulting from the transformation/dissolution test after 7 days at a loading rate of 1 mg/L with the lowest acute ecotoxicity reference values (ERVs) as determined for the (soluble) metal ions. The acute ERVs are based on the lowest EC50/LC50 values for algae, invertebrates and fish and were obtained from the Metals classification tool (MeClas) database as follows:
The acute ERVs of trivalent chromium (> 100 mg Cr/L), iron (> 100 mg Fe/L) and titanium are above 1 mg/L and thus a concern for short-term (acute) toxicity was not identified (no classification). According to ECHA Guidance on the Application of the CLP Criteria (Version 5.0, July 2017), “Where the acute ERV for the metal ions of concern is greater than 1 mg/L the metals need not be considered further in the classification scheme for acute hazard.” The acute ERVs for zinc are 413 µg Zn/L at pH 6-7 and 136 µg Zn/L at pH >7 and thus well above the respective dissolved zinc concentrations of 0.929 µg Zn/L at pH 6 and 3.68 µg Zn/L at pH 8 obtained after 7 days T/D tests at a loading of 1 mg/L. Due to the lack of an acute aquatic hazard potential for soluble trivalent chromium, iron and titanium ions and the fact that dissolved zinc concentrations after 7 days T/D tests at a loading of 1 mg/L and pH 6 and 8 remained well below the respective lowest acute ERVs, it can be concluded that the substance chromium, iron, titanium and zinc spinel and rutile is not sufficiently soluble to cause short-term toxicity at the level of the acute ERVs (expressed as EC50/LC50).
In accordance with Figure IV.4 “Classification strategy for determining acute aquatic hazard for metal compounds” of ECHA Guidance on the Application of the CLP Criteria (Version 5.0, July 2017) and section 4.1.2.10.2. of Regulation (EC) No 1272/2008, the substance chromium, iron, titanium and zinc spinel and rutile is poorly soluble and does not meet classification criteria for acute (short-term) aquatic hazard.
Chromium, iron, titanium and zinc spinel and rutile is poorly soluble and unlikely to cross biological membranes. In accordance with Annex VII, Column 2, Section 9.1.1. of Regulation (EC) 1907/2006, testing for short-term toxicity to invertebrates is not necessary.
Cross-reference
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-08-07 to 2017-10-20
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2016-05-31
- Type of method:
- flask method
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.355 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.314 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 4.42 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.229 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.2 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 4.17 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.079 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.111 µg/L
- Element analysed:
- Cr
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.532 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.136 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.463 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates < LOD: 0.463 µg/L
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.035 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates < LOD: 0.035 µg/L
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.085 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates < LOD: 0.085 µg/L
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.463 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates < LOD: 0.463 µg/L
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.123 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.273 µg/L
- Element analysed:
- Fe
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.123 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates < LOD / LOQ: 0.041 µg/L / 0.123 µg/L
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.022 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.042 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- not determinable
- Remarks:
- not distinguishable from blank
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.041 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates at least < LOD: 0.041 µg/L
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.123 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates at least < LOQ: 0.123 µg/L
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.042 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- not determinable
- Remarks:
- not distinguishable from blank
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.123 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates at least < LOQ: 0.123 µg/L
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.123 µg/L
- Element analysed:
- Ti
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- other:
- Remarks:
- conc. of all replicates at least < LOQ: 0.123 µg/L
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 3.52 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 4.78 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 23.3 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 0.929 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Key result
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 3.68 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 20.5 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.052 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 6, separation of solid phase by filtration 0.2 µm
- Remarks on result:
- not determinable
- Remarks:
- not distinguishable from blank
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 2.17 µg/L
- Element analysed:
- Zn
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH = 8, separation of solid phase by filtration 0.2 µm
- Details on results:
- Background correction:
All data presented are corrected for background when possible, i.e., when measured Cr, Fe, Zn or Ti concentrations in blanks >LOQ.
Solution pH, oxygen concentrations, temperature
The temperature of the thermostatically controlled room was recorded with a data logger. The mean temperature was 21.3 ± 0.3 °C and 21.2 ± 0.3 °C for the additional test with 100 mg loading pH=8. The solution pH remained relatively constant for the pH 6 treatment for the method blank vessels (6.15 – 6.37) as for the sample vessels (5.83 – 6.37).
Oxygen levels in all test vessels pH 6 were in the range recommended by the OECD Test Guidance 29 during the test: above 70 % of oxygen saturation at 8.5 mg/L (70 % of 8.5 mg/L = 6 mg/L). The solution pH of the pH 8 remained relatively constant during the test in the method blanks (7.83 – 7.98) as well as in the sample vessels (7.78 – 7.97) for both the 1 mg loading and the 100 mg loading experiment. Oxygen levels in all test vessels pH 8 were in the range recommended by the OECD Test Guidance 29 during the test: above 70 % of oxygen saturation at 8.5 mg/L (70 % of 8.5 mg/L = 6 mg/L).
Analytical measurements: Within and between vessel variations of elemental concentrations (Cr, Fe, Zn, Ti)
Within and between vessel variations are not always in compliance with the guidance for the tests. The particle size distribution of each loading replicate may differ and thus resulting in different overall total surface areas per vessel. For these samples the observed variations of > 20 % (between-vessel) or > 10 % (within-vessel) were mainly in the recommended range for Cr and Zn pH 6. For iron (both pHs), Ti (both pHs) and Zn (pH 8, mainly only the between-vessel variation) variations were not in the recommended range, probably due to the low dissolution and the majority of measurements being close to – or below – the respective quantification limit of the method. - Conclusions:
- The transformation/dissolution test (OECD Series on Testing and Assessment Number 29, 2001) of inorganic pigment "Chromium, iron, titanium and zinc spinel and rutile" at a loading of 1 mg/L at pH 6 and 8, performed for 28d, resulted in maximum quantified Cr concentrations of 0.355 µg/L (pH = 6, 28d), maximum Fe concentrations of 0.532 µg/L (pH = 6, 28d), maximum Zn concentrations of 4.78 µg/L (pH = 8, 28d) as well as maximum Ti concentrations of 0.022 µg/L (background corrected, pH = 8, 28d). Thus, the extent to which "Chromium, iron, titanium and zinc spinel and rutile" can produce soluble available ionic and other metal-bearing species in aqueous media is limited. An additional test at pH 8 with 100 mg/L loading for 7 days revealed maximum soluble concentrations of 4.42 µg/L Cr, 23.3 µg/L Zn, < 0.463 µg/L Fe and < 0.042 µg/L Ti.
Method validation summary (ICP-OES)
Limits of detection (LODs), limits of quantification (LOQs) and correlation coefficients (r)
Limits of detection (LOD) within all measurement series: 0.049 -0.052 μg Zn / L, 0.035 - 0.085 µg / L Fe
Limit of detection (LOD) for measurements of 100 mg/L loading test: 0.215 µg Zn / L, 0.463 µg Fe / L
Limits of quantification (LOQ) within all measurement series: 0.148 - 0.156 μg Zn / L, 0.106 - 0.255 µg / L Fe
Limit of quantification (LOQ) for measurements of 100 mg/L loading test: 0.645 μg Zn / L, 1.39 µg / L Fe
Correlation coefficients (r) within all measurement series: > 0.999865 (Zn calibration), > 0.999868 (Fe calibration)
Mean recovery of fortified samples (concentration range 25 - 300 µg, n = 8): 97.1 - 106 % (Fe fortification), 102 - 109 % (Zn fortification)
Mean recovery for certified reference material TMDA-52.4 (lot no. 0615, Environment Canada): 99.5 - 103 % (Fe measurement, n = 14), 101 - 104 % (Zn measurement, n = 14)
date |
Chosen wavelength [nm] |
LOD |
LOQ |
correlation coefficient |
Sum of quality assurance samples |
Recovery of quality assurance samples [%] |
August 17, 2017; measurement of test samples (24 h and 7 d) and method blank samples (24 h and 7 d) – only pH 6 |
Fe: 238.204* Zn: 213.857* |
Fe: 0.035 Zn: 0.052 |
Fe: 0.106 Zn: 0.155 |
Fe: 0.999868 Zn: 0.999865 |
Fe: 17 Zn:17 |
Fe: 88.2 Zn: 88.2 |
date |
Chosen wavelength [nm] |
LOD |
LOQ |
correlation coefficient |
Sum of quality assurance samples |
Recovery of quality assurance samples [%] |
September 29, 2017; measurement of test samples (28 d) and method blank samples (28 d) pH 6; pH 8 all test samples and method blank samples(24 h, 7d and 28 d) |
Fe: 238.204* Zn: 213.857* |
Fe: 0.085 Zn: 0.049 |
Fe: 0.255 Zn: 0.148 |
Fe: 0.999940 Zn: 0.999960 |
Fe: 28 Zn: 28 |
Fe: 92.9 Zn: 85.7 |
Method validation summary (ICP-MS)
Limits of detection (LODs), limits of quantification (LOQs)and correlation coefficients (r)
Limits of detection (LOD) within all measurement series: 0.008 - 0.041 μg Ti / L ; 0.005 - 0.006 µg Cr / L
Limit of detection (LOD) for measurements of 100 mg/L loading test: 0.042 µg Ti / L, 0.003 µg Cr / L
Limits of quantification (LOQ) within all measurement series: 0.023 - 0.123 μg Ti / L; 0.016 - 0.018 µg Cr / L
Limit of quantification (LOQ) for measurements of 100 mg/L loading test: 0.126 μg Ti / L, 0.01 µg / L Cr
Correlation coefficients (r) within all measurement series: > 0.9988
Mean recovery of fortified samples (n = 4): 97.4 - 103 % (Cr), 99.1 - 106 % (Ti)
Mean recovery of certified reference material TMDA-52.4 (lot no. 0615, Environment Canada): 105 - 106 % (n=11, Ti), 103 -105 % (n=11, Cr)
Mean recovery of certified reference material TM-26.4 (lot no. 1115, Environment Canada) for measurements of 100 mg/L loading test: 94.4 % (n=4, Ti), 111 % (n=4, Cr)
date |
Chosen isotope and gas mode |
LOD |
LOQ |
correlation coefficient |
Sum of quality assurance samples |
Recovery of quality assurance samples [%] |
September 12, 2017; measurement of test samples (all sampling times) and method blank samples (all sampling times) – only pH 6; pH 8 only sampling points 24 h and 7 d |
Cr:52Cr* [Helium gas mode] Ti:47Ti* [Helium gas mode] |
Cr: 0.005 Ti: 0.041 |
Cr: 0.016 Ti: 0.123 |
Cr: 0.9996 Ti: 0.9997 |
Cr: 47 Ti: 47 |
Cr: 97.9 Ti: 97.9 |
date |
Chosen isotope and gas mode |
LOD |
LOQ |
correlation coefficient |
Sum of quality assurance samples |
Recovery of quality assurance samples [%] |
September 29, 2017; measurement of test samples (28 d) and method blank samples (28 d) – only pH 8 |
Cr:52Cr* [HiHelium gas mode] Ti:47Ti [HiHelium gas mode] |
Cr: 0.006 Ti: 0.008 |
Cr: 0.018 Ti: 0.023 |
Cr: 0.9988 Ti: 0.9988 |
Cr: 7 Ti: 7 |
Cr: 100 Ti: 100 |
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.