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First Standard® 甲醇中噻霉酮溶液,1000μg/mL
Simazine (ring-13C3) Solution 100ug/ml in Methanol
邻苯二甲酸二戊酯-D4
甲氰菊酯农药纯度标准物质
N-b-Hydroxyethyl stearyl imidazoline
ICP-MS Starter Kit-E
邻苯二甲酸二癸酯溶液,1000ppm
Androsta-1,4,6-triene-3,17-dione
戊二醛 (DNPH Derivative)(有证书)
杀螨醇 标准品