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药典色度标准品GY系 for testing the colour intensity acc. to Ph. Eur. GY1-GY7 CertiPUR®
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药典色度标准品B系 for testing the colour intensity acc. to Ph. Eur. B1-B9 CertiPUR®
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药典色度标准品R系 for testing the colour intensity acc. to Ph. Eur. R1-R7 CertiPUR®
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药典色度标准品Y系 for testing the colour intensity acc. to Ph. Eur. Y1-Y7 CertiPUR®
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溴甲酚紫 indicator ACS,Reag. Ph Eur
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溴甲酚紫 indicator ACS,Reag. Ph Eur
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1-萘酚苯甲醇 indicator Reag. Ph Eur
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磷酸二氢钾, 磷酸氢二钠 certified secondary standard reference material for pH measurement
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赛默飞Thermo pH Gradient Buffer Solutions液相色谱柱
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碘化钾淀粉试纸 Roll (4.8 m) with colour scale Reag. Ph Eur
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