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农药 农药
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党参中农药残留(2020药典)质控样
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党参中农药残留(2021药典)质控样
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艾杰尔Cleanert氯丙醇专用柱4g/30mL, 15/Pk
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艾杰尔Cleanert氯丙醇专用柱5g/30ml, 15/Pk
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CELLTREAT Scientific Products 229410 Centrifuge Tube, 15 mL, Flat-Top, Rack, Sterile; 500/Cs
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CELLTREAT Scientific Products 229417 Centrifuge Tube, 15 mL, Flip-Top, Bag, Sterile; 500/Cs
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艾杰尔Cleanert激素检测专用柱500g/6mL, 30/Pk
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CELLTREAT Scientific Products 229416 Centrifuge Tube, 15 mL, Flip-Top, Rack, Sterile; 500/Cs
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Cleanert TPH 中草药农残分析专用固相萃取SPE柱
; Cleanert TPH 中草药农残检测专用柱净化 正己烷: 丙酮(4:6)溶液25 mL 洗脱,旋蒸浓缩至干后正己烷定容,加入内标过膜后待分析
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