pH indicators. Several indicators are added to acidic, neutral and alkaline solutions in a multiwell plate. The solutions are: 0.1 M hydrochloric acid (top row), neutral (pH=7) buffer (middle row), and 0.1 M sodium hydroxide. The indicators are, left to right columns: universal indicator, phenolphthalein, bromocresol purple, methyl orange.
px | px | dpi | = | cm | x | cm | = | MB |
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TOP22303976
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達志影像
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RM
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