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CS-N-10618-250MG

2，4-D isopropylamine salt

（±）Protosappanin B-RM

Dodecyl Arachidate

总氮(以氮计) 水质标液(浓度500µg/ml)

MCPA-ethyl ester

Yttrium ICP Standard,1000 μg/mL in 2-5% Nitric Acid

Zinc picolinate

1.8μm ID2.1mm*100mm

Perfluorotetradecanoic acid 50 µg/mL in Methanol:Water

PCB No. 28 13C12 40 µg/mL in Isooctane

2,3-Dihydroxy-4-oxopentanoic Acid

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