1983
DOI: 10.1002/aheh.19830110511
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Vergleichende Untersuchungen zum Nachweis von Chlor im Trink‐ und Badewasser auf der Basis von o‐Tolidin und Diäthyl‐p‐phenylendiamin (DPD)

Abstract: The detection of free chlorine with the aid of o-tolidine is connected with systematic errors within the range of concentration below 0.1 mg/l and above 0.7 mg/l, reproducibility being otherwise good. I n the case of the simultaneous presence of free and bound active chlorine, especially in bathing water, this method det,ermines 50 ... 70 O/ o of varying shares of the bound chlorine in dependence on t,he reaction time. As detailed statistical investigations have shown, the determination of chlorine with the ai… Show more

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1986
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