挥发性有机污染物用色谱柱Restek Rtx-624
10971Restek Rtx-624气相色谱柱30m*0.53mm*3µm
Restek Rtx-50气相色谱柱10524农残用柱
10523美国Restek Rtx-50色谱柱30m*0.25mm*0.25µm
12624Restek Rtx-5MS色谱柱30m*0.32mm*0.25µm
Rtx-5MS气相色谱柱30m*0.25mm*0.25µm 12623
Restek Rtx-5气相色谱柱10224 内径0.32mm
10223Restek Rtx-5色谱柱30m*0.25mm*0.25um
10124Restek Rtx-1色谱柱30m*0.32mm*0.25µm
美国Restek瑞思泰康 Rtx-1气相色谱柱10123
13424Restek Rxi-5ms色谱柱30m*0.32mm*0.25um
13423Restek Rxi-5ms毛细管柱30m*0.25mm*0.25µm
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