IGNITION METHOD FOR DETERMINATION OF TOTAL PHOSPHORUS IN LAKE SEDIMENTS
IGNITION METHOD FOR DETERMINATION OF TOTAL PHOSPHORUS IN LAKE SEDIMENTS
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DOI：
10.1016/0043-1354(76)90175-5
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发表时间：
1976-01-01
期刊：
影响因子：
12.8
通讯作者：
ANDERSEN, JM
中科院分区：
文献类型：
--
作者：
ANDERSEN, JM
本文介绍了一种测定湖泊沉积物或生源物质中总磷的方法。有机物通过燃烧被破坏。灼烧后剩余的物质在1 N HCl中煮沸，稀释后测定正磷酸盐。对于4份沉积物样品和1份干叶样品，该方法的结果通常低于高氯酸消化法（97.7%、98.7%、94.4%、100.5%和97.3%）。灼烧法的重现性略低于高氯酸法。向沉积物样品中加入已知量的羟基磷灰石后，回收率为98.5- 102.6%。
A method is described for determination of total P in lake sediments or biogenic material. The organic matter is destroyed by ignition. Material remaining after ignition is boiled in 1 N HCl and orthophosphate determined after dilution. The method generally gave lower results than the perchloric acid digestion method (97.7, 98.7, 94.4, 100.5 and 97.3%) for 4 sediment samples and 1 sample of dried leaves. The reproducibility of the ignition method was slightly less than that observed with the perchloric acid method. Recovery after addition of known amounts of hydroxylapatite to the sediment samples was 98.5-102.6%.