An automated method for the simultaneous determination of nitrogen and phosphorus in plant material, sludge and soil

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Petts, K.W.
Belcher, M.
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Water Pollution Control | 1980年 / 79卷 / 03期
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This paper describes the semi-automated method which involves controlled digestion with sulfuric acid of up to 40 samples in a thermostatically regulated heating block, followed by automatic calorimetric analysis of the digest solutions for both ammonia and orthophosphate concentrations. Nitrogen and phosphorus are determined in concentration ranges of 0-2. 25 percent and 0-0. 75 percent respectively.
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页码：399 / 404
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