-
SPE固相萃取柱 COLUMN, Florisil PR 弗罗里硅土(硅镁吸附剂)剂 1000mg/6mL 30PK 72050
-
多为莱博 SI-415硅二极管温度传感器
-
亚硝酸盐标准溶液(以氮计),100mg/L in water
-
钯标准溶液,7647-10-1,1000ug/ml in 2.0 mol/L hydrochloric acid
-
硒标准溶液,7782-49-2,100mg/L in water
-
十甲基环五硅氧烷,541-02-6,≥99.0%(GC)
-
水中无机碳溶液标准物质,1000mg/L,in water
-
甲醛标准溶液,50-00-0,analytical standard,100mg/L,in 5% ethanol
-
硒标准溶液,7782-49-2,100mg/L in 1%HCl
-
铟标准溶液,7440-74-6,100mg/L (20℃) in 1%HCl
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