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CRYOBOXES, MADE OF HYDROPHOBIC CARDBOARD BROWN COLOUR, W. 100 CAVITIES F. 4 + 5 ML VIALS, 136 X 13
BOTTLES, NARROW NECK, PE, WITH SCREW-CAP, CAPACITY 50 ML. GL-18
Porapak QS 50/80,填料
岛津填充柱
Apparatus for the determination of Arsenic, by the colorimetric method using silver- diethyl-dithiocarbamat, complete, borosilicate glass
改良CCD平板
HYPERSIL GOLD PFP 5UM 250X21MM PREP COLUMN
月桂酸4-硝基苯酯标准品
乙腈中酯菌胺溶液,1000μg/mL
次亚磷酸,50%水溶液 GR(沪试)