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SRM 2378 Fatty Acids in Human Serum
Data provided by National Institute of Standards and Technology
Donor serum for SRM 2378 was collected from three groups of individuals: (level 1) three healthy donors who took 1000 mg/day of fish oil supplements for a minimum of one month prior to collection; (level 2) three healthy donors who took 1000 mg/day of flaxseed oil supplements for a minimum of one month prior to collection; and (level 3) three healthy donors who did not take either fish or flaxseed oil supplements for one month prior to collection.
Tags: fatty acids,serum,Biosciences and Health,
Modified: 2024-02-22
Views: 0
SRM 2585 Organic Contaminants in House Dust
Data provided by National Institute of Standards and Technology
SRM 2585 Organic Contaminants in House Dust - This Standard Reference Material (SRM) is intended for use in evaluating analytical methods for the determination of selected polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyl (PCB) congeners, chlorinated pesticides, and polybrominated diphenyl ether (PBDE) congeners in house dust and similar matrices. All of the constituents for which certified, reference, and information values are provided in SRM 2585 were naturally present in the dust material before processing.
Tags: Standard Reference Material,SRM,SRM 2585,House Dust,certified values,Environment and Climate,
Modified: 2024-02-22
Views: 0
SRM 972a Vitamin D Metabolites in Frozen Human Serum
Data provided by National Institute of Standards and Technology
SRM 972a Vitamin D Metabolites in Frozen Human Serum - This Standard Reference Material (SRM) is intended for use as an accuracy control in the critical evaluation of methods for determining the amount-of-substance concentration of vitamin D metabolites in human serum. This SRM can also be used as a quality assurance tool for assigning values to in-house control materials for these constituents. This data is public in the Certificate of Analysis for this material.
Tags: Standard Reference Material,SRM,SRM 972a,Frozen Human Serum,certified values,reference values,Vitamin D Metabolites,25-hydroxyvitamin D3,25-hydroxyvitamin D2,3-epi-25-hydroxyvitamin D3,24R,25-dihydroxyvitamin D3,Biosciences and Health,
Modified: 2024-02-22
Views: 0
SRM 2973 Vitamin D Metabolites in Frozen Human Serum (High Level)
Data provided by National Institute of Standards and Technology
SRM 2973 Vitamin D Metabolites in Frozen Human Serum (High Level) - This Standard Reference Material (SRM) is intended for use as an accuracy control in the critical evaluation of methods for determining the amount-of-substance concentration of vitamin D metabolites in human serum. This SRM can also be used as a quality assurance tool for assigning values to in-house control materials for these constituents. This data is public in the Certificate of Analysis for this material.
Tags: Standard Reference Material,SRM,SRM 2973,Frozen Human Serum,certified values,reference values,Vitamin D Metabolites,25-hydroxyvitamin D3,25-hydroxyvitamin D2,3-epi-25-hydroxyvitamin D3,24R,25-dihydroxyvitamin D3,Biosciences and Health,
Modified: 2024-02-22
Views: 0
SRM 3156 Tellurium (Te) Standard Solution Lot No. 140830
Data provided by National Institute of Standards and Technology
This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of tellurium. A unit of SRM 3156 consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of tellurium. The solution contains hydrochloric acid at a volume fraction of approximately 10 %, which is equivalent to an amount of substance concentration (molarity) of approximately 1.2 mol/L. This data is public in the Certificate of Analysis for this material.
Tags: tellurium,pure materials,cations,metals,single element solutions,spectrometry,Advanced Materials,
Modified: 2024-02-22
Views: 0
SRM 3163 Tungsten (W) Standard Solution, Lot No. 140606
Data provided by National Institute of Standards and Technology
This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of tungsten. A unit of SRM 3163 consists of 50 mL of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of tungsten in a high-density polyethylene bottle sealed in an aluminized bag.
Tags: tungsten,pure materials,cations,single-element solutions,spectrometry,Biosciences and Health,
Modified: 2024-02-22
Views: 0
SRM 3239 Isoflavones Calibration Solution
Data provided by National Institute of Standards and Technology
SRM 3239 Isoflavones Calibration Solution - This Standard Reference Material (SRM) is intended primarily for use in calibration of instruments and techniques used for the determination of isoflavones. SRM 3239 consists of two solutions containing isoflavones at levels that reflect the mass fraction ratios found in soy products. This data is public in the Certificate of Analysis for this material.
Tags: Standard Reference Material,SRM,SRM 3239,certified values,nutrition,dietary supplements,isoflavones,Food and Nutrition,
Modified: 2024-02-22
Views: 0
SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution]
Data provided by National Institute of Standards and Technology
SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution] - This Standard Reference Material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems at pH values above 11.0. This lot of calcium carbonate (CaCO3) was selected for its low level of alkali metal impurities. However, this SRM is certified ONLY as a pH standard, NOT as a pure substance. A unit of SRM 2193a consists of 30 g of CaCO3. This data is public in the Certificate of Analysis for this material.
Tags: Biosciences and Health,Environment and Climate,Food and Nutrition,
Modified: 2024-02-22
Views: 0
SRM 3104a Barium (Ba) Standard Solution Lot No. 140909
Data provided by National Institute of Standards and Technology
This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of barium. A unit of SRM 3104a consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of barium. The solution contains nitric acid at a volume fraction of approximately 1 %, which is equivalent to a concentration (molarity) of approximately 0.16 mol/L. This data is public in the Certificate of Analysis for this material.
Tags: barium,pure materials,cations,metals,single element solutions,spectrometry,Advanced Materials,
Modified: 2024-02-22
Views: 0
SRM 3110 Cerium (Ce) Standard Solution Lot No. 160830
Data provided by National Institute of Standards and Technology
This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of cerium. A unit of SRM 3110 consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of cerium. The solution contains nitric acid at a mass fraction of approximately 16 %. This data is public in the Certificate of Analysis for this material.
Tags: cerium,pure materials,cations,metals,single element solutions,spectrometry,Advanced Materials,
Modified: 2024-02-22
Views: 0