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15种元素ICP-MS混标,溶于10% Aqua Regia
FOLIN-CAPILLARY PIPETTES, CALIBRATED FOR "IN", 200 UL, MARKS AT 100 UL, 2 MARKS, DIN 12 688 , CLE
4-氯-2-甲基苯胺
0.1%蛋白胨水
Silica gel 60 PF254 containing gypsum for preparative layer chromatography
SPECIMEN BOTTLES WITH THREAD, CAP PE, FOR TESTS AND PILLS ETC., HEIGHT 55 MM DIA. 20 MM, CAPACITY
Diamonsil Plus C8 5μm 150 x 4.6mm
Talboys Model 703钢瓶底座
10%peg-20m on chromosorb waw dmcs-80-100mesh sus for shimadz
铅粒 5N(沪试)