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纺织品中偶氮空白样品D待测目标物联苯胺
Organomation气体压力调节器,输入30-150psig输出0-30psig
CNW 13-425 棕色螺纹口4mL样品瓶(带刻度、书写)
LiChroCART 250-4,LiChrospher 60 RP select b 5μm定制柱
LIDS, FLAT FLANGE, WITH CENTER NECK GL 25 AND 1 ANGLED NECK GL 18 15° DN 200
250mL塑料烧杯
ELECTRODES EQUIVALENT TO METTLER TOLEDO ELECTRODES INLAB Reference
无菌塑料滴支3ML
套装 磁 顶空 样品瓶 /旋盖/钳口盖-未组装 500/件 20ML 棕色RB SILVER TIN 聚四氟乙烯/丁基橡胶
Selenium 1,000 mg/L in 2% HNO3, 25 mL (Se Metal)