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8270 混标, 标准品
Methylphenidate-d9 hydrochloride (piperidine-d9), (erythro+threo)
Fluoranthene-d10
N-乙酰-S-(2-氨基甲酰乙基)-L-半胱氨酸 标准品
Asoxime Chloride
毒死蜱(符合:GB 2763-2016)
Calcium hexafluorosilicate dihydrate (无证书)
Benzoic Acid (Calorimetric Standard)
Camphene Solution 1000ug/ml in Methylene chloride
29种农残混标 Bepure-33413QZ-h