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p,p’-DDE农药溶液分析标准物质
M-2A石墨垫(1/4 column OD*1/4 ferrule ID)
硫酸铈,四水
CORTECS UPLC HILIC VanGuard Pre-column 预柱
一次性使用负压采血管(5ml)
(定制产品)8种元素ICP-MS混标,As/Cd/Cr/Ni/Pb/Sb/Sn/Hg,500mg/L溶于2% HNO3
SCREW THREAD TUBES, 40 X 3.2 X 180 MM, GL 45, DURAN
BEAKERS, 3000 ML, LOW FORM, BOROSILICATE- GLASS, WITH GRADUATION AND SPOUT
DURAN? Hexagonal stoppers, flat, ground, NS 24/29, with "safety groove"
手术刀片(大园刀)