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Tris-盐酸缓冲液,1M,pH 7.4
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Tris-盐酸缓冲液,1M,pH 8.0
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pH6.8磷酸盐缓冲液 HB8743 250g
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pH试纸 non-bleeding pH 5.0 - 5.5 - 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0 - 9.5 - 10 0 Neutralit®
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pH 参比液,1M or 10%KNO3
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二甲酚橘四钠盐 metal indicator ACS,Reag. Ph Eur
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二甲酚橘四钠盐 metal indicator ACS,Reag. Ph Eur
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甲基橙溶液 0.1% indicator pH 3.1-4.4 (red yellow-orange)
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甲基橙溶液 0.1% indicator pH 3.1-4.4 (red yellow-orange)
-
pH试纸 non-bleeding pH 2.5 - 3.0 - 3.3 - 3.6 - 3.9 - 4.2 - 4.5
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