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方差分析常用来判断试验条件对试验结果影响的显著程度。本文尝试性地循环运用方差分析中的单因素方差分析对用于火焰原子吸收法测定底泥样品的十种不同的消化方法所得的试验结果进行统计检验和分析比较,成功地选出了适合于同时测定底泥样品中铜、铅、锌、镉、铬和镍六种元素的样品消化最佳方法。所有复杂的统计计算均编成程序由PC-1500微型计算机完成。由于篇幅所限,计算机程序从略。一试验部分所比较的底泥样品的十种消化方法是 1 硝酸水浴法;2 硝酸煮沸法;3 硝酸蒸干法:4 王水消化法;5 干灰化-王水法;6 硝酸-高氯酸法;7 硝酸-过氧化氢法;8 王水-高氯酸法;9 硝酸-氢氟酸-高氯酸法;10 硝酸-氢氟酸-硫酸法。
Variance analysis is often used to determine the extent to which the test conditions affect the test results. This paper tentatively uses one-way analysis of variance (ANOVA) of variance analysis to statistically test and compare the test results obtained from ten different digestion methods used for the determination of sediment samples by flame atomic absorption spectrometry. Simultaneous determination of sediment samples of copper, lead, zinc, cadmium, chromium and nickel six sample digestion best method. All complex statistical calculations are compiled into a program by a PC-1500 microcomputer. Due to space limitations, the computer program omitted. A comparison of the test section of the sediment samples ten digestion method is a nitric acid water bath; 2 nitric acid boiling; 3 nitric acid steaming method: 4 Aqua digestion; 5 dry ashing - aqua regia; 6 nitric acid - perchloric acid Method; 7 nitric acid - hydrogen peroxide method; 8 aqua regia - perchloric acid method; 9 nitric acid - hydrofluoric acid - perchloric acid method; 10 nitric acid - hydrofluoric acid - sulfuric acid method.