SRM 968f - Fat-Soluble Vitamins in Frozen Human Serum|干冰运输
SRM 640f - Line Position and Line Shape Standard for Powder Diffraction (Silicon Powder)
Trace Elements in Spinach Leaves
Human DNA for Whole-Genome Variant Assessment (Son of Eastern European Ashkenazim Jewish Ancestry)
Vitamin B6 in Frozen Human Serum
SRM 3672 - Organic Contaminants in Smokers' Urine (Frozen)
RM 8671 - NISTmAb, Humanized IgG1κ Monoclonal Antibody
SRM 1950 - Metabolites in Frozen Human Plasma 5*1ml
Infant/Adult Nutritional Formula I (milk-based)
Air Particulate on Filter Media
SRM 3668 - Mercury, Perchlorate, and Iodide in Frozen Human Urine
城市灰 英文名：Urban Dust 2g
Apple Leaves
Lipids in Frozen Human Serum
Fine Atmospheric Particulate Matter (Mean Particle Diameter < 4 µm)
SRM 3672 - Organic Contaminants in Smokers' Urine (Frozen)
RM 8558 - USGS32 Nitrogen and Oxygen Isotopes in Nitrate 0.9 g
Rice Flour
Lake Michigan Fish Tissue|密歇根湖鱼组织
Common Lead Isotopic Standard
