带 PE 筛板的聚丙烯固相萃取空管，20μm 孔隙度, Empty polypropylene SPE Tube with PE frits, 20 μm porosity

Equity^®-1 Intuvo Capillary GC Column

过滤器滤芯, Filter Cartridge

Frit Removing Tool for Supelco^® Analytical Columns

适用于 Supelco^® 分析柱的筛板拆卸工具

γ-DEX 225,30m 0.25mm 0.25μm, γ-DEX^TM 225

玻璃填充 GC 色谱柱（适用于Agilent，配置“A”）, Glass Packed GC Column (fits Agilent, Configuration "A")

GlasSeal^TM Capillary Column Connector, Borosilicate Glass

纯化器管, High Capacity Gas Purifier, Replacement Converter Tube

HPTLC Silica gel 60 RP-18 with concentrating zone 20 x 2.5 cm

烃类蒸气元件，配有氮气发生器的 O 形圈, Hydrocarbon vapor element with o-ring for nitrogen generator