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Gallium Standard Solution
First Standard® 甲醇中杀虫单溶液, 100 μg/mL
GBW(E)091136 马拉硫磷 CAS号4812-40-2
Silver acetate (无证书)
CAROTENE, B-(P) 标准品
(进出口农药登记证明,仅售sigma现货)矮壮素(2-氯乙基三甲基铵盐酸盐)标准品
L-Glutamic Acid-13C5,15N
44种农残混标 Bepure-33420XB-a
Methylene chloride (d2)
3,3',5,5'-Tetrabromobisphenol A