Isotopic Mass-Spec Standards

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Isotopic Mass-Spec Standards

Mass Spectrometry is a powerful technique to measure elemental isotopes. The measurement of individual isotopes can reveal important information about the origin of the element in the sample. Isotope Dilution Mass Spectrometry (IDMS) is often said to be the most accurate mode of sample "unknown" analysis. The isotopes are non-radioactive, "stable" isotopes and can be handled like any aqueous standard.

QCD Isotopic Standards are manufactured under an ISO 9001 Quality System. All volumetric dilutions are stoichiometrically prepared using electronic grade acids, water is ASTM Type I 18.3 mega–ohm resistivity, Class A glassware and packaged in pre–cleaned bottles.

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Isotopic Mass-Spec Standard	Matrix	Nominal Composition	50mL SKU # / Cost	100mL SKU # / Cost	250mL SKU # / Cost
¹⁰ Boron, 100 µg/mL	2% HNO₃	¹⁰ B - 97.00% ¹¹ B - 03.00%	50510A32 $35.00 Order	50510D32 $65.00 Order	50510K32 $100.00 Order
¹⁰⁶ Cadmium, 10 µg/mL	2% HNO₃	¹⁰⁶ Cd - 79.00% ¹¹² Cd - 5.56% ¹⁰⁸ Cd - 00.68% ¹¹³ Cd - 1.73% ¹¹⁰ Cd - 03.03% ¹¹⁴ Cd - 6.21% ¹¹¹ Cd - 02.60% ¹¹⁶ Cd - 1.18%	548106A22 $320.00 Order	548106D22 $639.00 Order	548106K22 $1,597.00 Order
⁵⁰ Chromium, 10 µg/mL	2% HNO₃	⁵⁰ Cr - 96.75% ⁵³ Cr - 0.20% ⁵² Cr - 03.00% ⁵⁴ Cr - 0.05%	52450A22 $337.00 Order	52450D22 $673.00 Order	52450K22 $1,681.00 Order
⁶⁵ Copper, 10 µg/mL	2% HNO₃	⁶⁴ Cu - 00.40% ⁶⁵ Cu - 99.60%	52965A22 $55.00 Order	52965D22 $110.00 Order	52965K22 $274.00 Order
⁵⁷ Iron, 10 µg/mL	2% HNO₃	⁵⁴ Fe - 00.10% ⁵⁷ Fe - 92.45% ⁵⁶ Fe - 07.45% ⁵⁸ Fe - <0.05%	52657A22 $244.00 Order	52657D22 $488.00 Order	52657K22 $1,219.00 Order
Natural Lead, 100 µg/mL	2% HNO₃	²⁰⁴ Pb - 01.40% ²⁰⁷ Pb - 22.10% ²⁰⁶ Pb - 24.10% ²⁰⁸ Pb - 52.40%	5820A32 $43.00 Order	5820D32 $85.00 Order	5820K32 $211.00 Order
⁶ Lithium, 10 µg/mL	2% HNO₃	⁶ Li - 95.00% ⁷ Li - 05.00%	50306A22 $25.00 Order	50306D22 $45.00 Order	50306K22 $70.00 Order
⁶ Lithium, 100 µg/mL	2% HNO₃	⁶ Li - 95.00% ⁷ Li - 05.00%	50306A32 $35.00 Order	50306D32 $65.00 Order	50306K32 $100.00 Order
Natural Neodymium, 10 µg/mL	2% HNO₃	¹⁴² Nd - 27.10% ¹⁴⁶ Nd - 17.20% ¹⁴³ Nd - 12.20% ¹⁴⁸ Nd - 05.80% ¹⁴⁴ Nd - 23.80% ¹⁵⁰ Nd - 05.60% ¹⁴⁵ Nd - 08.30%	5600A22 - Price on Request Order	5600D22 - Price on Request Order	5600K22 - Price on Request Order
⁶¹ Nickel, 10 µg/mL	2% HNO₃	⁵⁸ Ni - 03.50% ⁶² Ni - 1.40% ⁶⁰ Ni - 06.10% ⁶⁴ Cd - 0.20% ⁶¹ Ni - 88.80%	52861A22 $236.00 Order	52861D22 $471.00 Order	52861K22 $1,177.00 Order
⁷⁸ Selenium, 10 µg/mL	2% HNO₃	⁷⁴ Se - 0.06% ⁷⁸ Se - 98.50% ⁷⁶ Se - 0.11% ⁸⁰ Se - 01.00% ⁷⁷ Se - 0.17% ⁸² Se - 00.08%	53478A22 $181.00 Order	53478D22 $362.00 Order	53478K22 $904.00 Order
⁸² Selenium, 10 µg/mL	2% HNO₃	⁷⁴ Se - 0.16% ⁷⁸ Se - 00.60% ⁷⁶ Se - 0.30% ⁸⁰ Se - 01.95% ⁷⁷ Se - 0.33% ⁸² Se - 96.70%	53482A22 $299.00 Order	53482D22 $597.00 Order	53482K22 $1,492.00 Order
Natural Strontium, 100 µg/mL	2% HNO₃	⁸⁴ Sr - 0.60% ⁸⁷ Sr - 07.00% ⁸⁶ Sr - 9.90% ⁸⁸ Sr - 82.60%	5380A32 $42.00 Order	5380D32 $85.00 Order	5380K32 $211.00 Order
⁶⁸ Zinc, 10 µg/mL	2% HNO₃	⁶⁴ Zn - 1.90% ⁶⁸ Zn - 95.00% ⁶⁶ Zn - 1.80% ⁷⁰ Zn - 00.20% ⁶⁷ Zn - 0.70%	53068A22 $57.00 Order	53068D22 $113.00 Order	53068K22 $403.00 Order
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