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甲醇中残杀威
LiChroCART 75-10,Purospher RP-18 HC 5μm定制柱
甲醇中丙烯酸乙酯
棕色螺纹口样品瓶,9mm,宽口(6mm),带书写标签
TEST TUBES, AR-GLASS, WITH RIM AND ROUND BOTTOM, LENGTH 160 MM, O.D.16MM
(s,s)-Whelk-O1 手性柱
Boston Round窄口瓶,无盖,天然高密度聚乙烯,125毫升容量,每包500
Reaction vessel, 5000 ml, flat flange with groove, DN150, thermostatic, with 2 screw threads GL18, flat bottom, outside ?:190mm, inside ?:150mm, graduated, height: 430mm, borosilicate gl
5种酸根离子,1000mg/L ,250 ml,溶于5% HCl + 5% HNO3
气相填充柱