collagen
发表于 2025-3-25 05:53:34
Lecture Notes in Computer ScienceArsenite (and arsenate and phosphate) have been determined in natural waters by a technique based on flotation spectrophotometry and extraction — indirect atomic absorption spectrometry using malachite green as an ion-pair reagent .
Vsd168
发表于 2025-3-25 11:15:59
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赦免
发表于 2025-3-25 15:05:53
Introduction,The contents pages of this book list the types of anions discussed, together with subsections dealing with each type of sample. For some readers it may be of interest to list the analytical techniques used for the determination of each type of anion. This is discussed below.
metropolitan
发表于 2025-3-25 17:53:47
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Muscularis
发表于 2025-3-25 22:51:20
Sulphur Containing Anions,Various titration procedures have been described for the estimation of sulphate. These include reaction with excess barium ions and back titration of excess barium, direct titration of sulphate with barium ions, and direct titration of sulphate with lead ions.
帐单
发表于 2025-3-26 04:10:04
Boron-Containing Anions,The most popular spectroscopic method for the determination of borate in water is based on the use of curcumin as chromogenic reagent which reacts with borate to produce rosocyanine, a pink coloured dye.
phlegm
发表于 2025-3-26 06:54:38
Carbonate, Bicarbonate and Total Alkalinity,Legrand et al. carried out, alkalinity and acidity titrations on polar snow. The method is accurate to ± 0.2 μ equiv l. acidity or alkalinity. Contamination free sampling and sample handling techniques are described.
BROOK
发表于 2025-3-26 08:30:27
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Mets552
发表于 2025-3-26 14:45:44
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我要沮丧
发表于 2025-3-26 18:13:33
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