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取量查核试剂 Check solutions (4x6 cells) and reference solutions (4 cells ) for checking the volume of pipettes Spectroquant®
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Methylated chlorinated herbicides 农药
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Chlorinated extractables standard EPA 州标准品
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pH试纸 for pH measurements in turbid solutions (suspensions) non-bleeding pH 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9
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液液萃取柱 NT20 pre-packed columns for extraction of lipophilic compounds from aqueous solutions (20 ml sample)
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5 N硫酸 for the preparation of dilute volumetric solutions or for direct use c(H₂SO₄) = 2.5 mol/l (5 N) Combi-Titrisol®
Sulfuric acid 1.000 l for the preparation of dilute volumetric solutions or for direct use c(H2SO4
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液液萃取柱 NT3 pre-packed columns for extraction of lipophilic compounds from aqueous solutions (1 - 3 ml sample)
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盐酸标准液1L for the preparation of dilute volumetric solutions or for direct use c(HCl) = 5 mol/l (5 N) Combi-Titrisol®
Hydrochloric acid 1.000 l for the preparation of dilute volumetric solutions or for direct use c(HCl
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液液萃取柱 NT1 pre-packed columns for extraction of lipophilic compounds from aqueous solutions (0,1 - 1 ml sample)
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赛默飞Thermo pH Gradient Buffer Solutions液相色谱柱
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