如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
Envi-Carb SPE填料,120/400目
AQUASIL C18 3UM 20X2.1MM COLUMN
Lead 1000 mg/L in 2% HNO3, 25 ml (Pb Metal)
Extraction thimbles, I-?: 22 mm, length: 80 mm, cellulose Case = 25 pcs.
17种农残混标(GB 23200.116-2019 组V)
LiChroCART 150-10,LiChrospher 100 RP-18 15μm定制柱
(E)-2-丁烯二酸 富马酸 >99.0%
CHROMATOGRAPHIC-COLUMNS, ST-SOCKET 29/32, ST-PTFE-STOPCOCK, SOLID PLUG, SCREW-THREAD RETAINING NUT
(易制毒三类)高锰酸钾,0.1N(硫代硫酸钠标定)
11 MM 铝 密封垫 聚四氟乙烯/GREY BUTY