The principle of membrane analysis of dissolved oxygen is different from that of fluorescence method.
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Hy551-b UV254 cod sensor provides 1-point or 2-point calibration in mg/l. 1-point calibration is completed in distilled w……
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Why do pH electrodes need to be kept moist
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Unlike the dissolved oxygen probe technology based on the electrochemical principle, the hybono fluorescence dissolved ox……
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