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浓缩缓冲液 (potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB
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缓冲液 (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR®
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缓冲液 (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) 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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缓冲剂 (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR®
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缓冲液 (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (20°C) CertiPUR®
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缓冲液 (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (20°C) CertiPUR®
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缓冲液 (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (20°C) CertiPUR®
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缓冲液 (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (20°C) CertiPUR®
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浓缩缓冲液 for 500 ml buffer solution, (citrate/hydrochloric acid), traceable to SRM
Buffer concentrate (citrate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer
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