Boric Acid (Acidimetric Standard)

IAEA-S-2 (Sulfur Isotopes in Silver Sulfide)

SRM 8555 1 option

0.5 g

NBS 19 Limestone (Carbon and Oxygen Isotopes in Carbonate)

SRM 8544 1 option

0.4 g

LSVEC (Carbon, Oxygen, and Lithium Isotopes in Lithium Carbonate)

SRM 8545 1 option

0.4 g

NBS28 (Silicon and Oxygen Isotopes in Silica Sand)

SRM 8546 1 option

0.4 g

IAEA-N-1 (Nitrogen Isotopes in Ammonium Sulfate)

SRM 8547 1 option

0.4 g

IAEA-N-2 (Nitrogen Isotopes in Ammonium Sulfate)

SRM 8548 1 option

0.4 g

USGS25 (Nitrogen Isotopes in Ammonium Sulfate)

SRM 8550 1 option

0.5 g

USGS26 (Nitrogen Isotopes i n Ammonium Sulfate)

SRM 8551 1 option

0.5 g

NSVEC (Nitrogen Isotopes in Gaseous Nitrogen)

SRM 8552 1 option

300 µmol

IAEA-S-4 (Soufre De Lacq) (Sulfur Isotopes in Elemental Sulfur)

SRM 8553 1 option

0.5 g

IAEA-S-1 (Sulfur Isotopes in Silver Sulfide)

SRM 8554 1 option

0.5 g

SLAP-Water Light Stable Isotopic Standard

SRM 8537 1 option

20ML