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整体化色谱柱 monolithic ready-to-use HPLC column Chromolith®
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整体化色谱柱 monolithic ready-to-use HPLC column Chromolith®
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浓缩缓冲液 (potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB
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; directly traceable to primary SRM from NIST/PTB pH(S)=10.01₄ (25°C) (DIN 19266) CertiPUR®
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; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) (DIN 19266) CertiPUR®
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浓缩缓冲液 for 500 ml buffer solution, (phosphate), traceable to SRM of NIST and PTB
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pH标准缓冲溶液(pH=4.01),pH=4.012 (25℃)
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pH标准缓冲溶液(pH=6.86),pH=6.863(25℃)
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pH标准缓冲溶液(pH=9.18),pH=9.184 (25℃)
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硼酸盐溶液,0.1mol/L,pH10.0
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