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CLAMPS ACC. TO HOFFMANN, SIZE 30 MM
2-甲基-1,10-菲咯啉
对羟基苯丙酸甲酯
Tris(2,4,6-trimethylphenyl)phosphine
三乙二醇二甲醚 标准品
Grad. pipette, 20:0,1 ml, class AS, 0-point in the tip, acc. to DIN EN ISO 385, for complete swift delivery, conformity certified, waiting time 5 s., DIFFICO brown, color-code 2x yellow
17种农残混标(GB 23200.116-2019 组V)
PRISM RPN 5UM 50X4.6MM COLUMN
Discovery® 银离子固相萃取管
Heptachlor-endo-epoxide (trans-, isomer A),10ng/ul 标准品