EVALUATION OF CERAMIC CUPS FOR DETERMINING SOIL SOLUTION CHEMISTRY
EVALUATION OF CERAMIC CUPS FOR DETERMINING SOIL SOLUTION CHEMISTRY
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用于测定土壤溶液化学成分的陶瓷杯的评估
DOI：
10.1097/00010694-198807000-00005
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
G. E. Hart
中科院分区：
文献类型：
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作者：
N. Debyle;R. Hennes;G. E. Hart
在实验室环境中，10个新的陶瓷杯土壤溶液采样器，10个采样器使用1年，10个使用6年进行了测试的一致性和均匀性的结果。用酸和蒸馏水冲洗新杯子。已在现场安装6年的陶瓷杯产生的样品中Mg、Na、NO3和K浓度始终大于或等于已安装1年的杯的样品。两组样本的浓度都大于或等于新杯子的浓度。在用HCl和蒸馏水冲洗所有三种杯型后，进行第二次比较，在两组浸提液中未发现Ca和Mg浓度的显著差异。然而，Na，K和NO3浓度显示出一定的变异性。冲洗显然使所有杯子的阳离子交换恢复到更均匀的状态。冲洗将减少由于现场使用造成的杯壁堵塞。然而，酸冲洗将使第一组提取样品的浓度降低至低于土壤溶液的浓度。
In a laboratory setting, 10 new ceramic cup soil solution samplers, 10 samplers used 1 yr, and 10 used 6 yr were tested for consistency and uniformity of results. The new cups were flushed with acid and distilled water. The ceramic cups that had been installed in the field 6 yr produced samples with Mg, Na, NO3, and K concentrations that were consistently greater than or equal to samples from cups that had been installed for 1 yr. Both sets proauced concentrations greater than or equal to those from the new cups. After all three cup types were flushed with HCI and distilled water, a second comparison was made, and no significant differences were found in Ca and Mg concentrations in two sets of extracts. However, Na, K, and NO3 concentrations showed some variability. Flushing apparently returned the cation exchange of all cups to a more uniform status. Flushing will reduce plugging of the cup wall due to field use. However, acid flushing will reduce concentrations of the first set of extracted samples to less than that of the soil solution.