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2-METHYL-6-NITROANILINE OEKANAL, 250 MG 标准品
Tetrabutylammonium iodide (无证书)
邻二氯苯溶液,100ppm
农残混标10
磺胺甲基嘧啶 标准品
Nitralin Solution 100ug/ml in Hexane
比色用重铬酸钾液 Bepure-S0102C
4-Nitroanthranilic acid (无证书)
ASTM D3606 Benzene in Gasoline Std. #1 w/ IS in Isooctane
First Standard® 乙腈中炔诺孕酮溶液, 1000ug/ml