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Promazine Hydrochloride
Sulfamethoxazole-d4
二氢玉米素(D-DHZ) 标准品
Napropamide 标准品
Terbufos sulfone, 10μg/ml in toluene
ASTM D5769 3 Internal Standard Mix
农残混标C
Dibutyltin diacetate (无证书)
Chlorination Disinfection Byproducts Mixture #2 - 551.1 1000ug/ml in t-Butylmethyl ether
TPH - Loamy Sand 2 标准品