离子色谱法测定土壤中氯离子、硫酸根离子、硝酸根离子
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摘要
建立离子色谱法测定土壤中Cl~–,SO_4~(2–),NO_3~–3种阴离子的含量。淋洗液为30 mmol/L KOH溶液,等浓度淋洗,流速为1.0 mL/min。Cl~–,SO_4~(2–),NO_3~–的线性范围均为0~20 mg/L,线性相关系数均大于0.999 9,检出限为0.051~0.082 mg/L,混合标准溶液测定结果的相对标准偏差为0.31~0.38%(n=10)。对土壤样品进行重复测定,3种离子测定结果的相对标准偏差均小于3%(n=7),加标回收率在95.0%~104.5%之间。该方法测定结果准确,操作简单、快速,适用于土遗址中Cl~–,SO_4~(2–),NO_3~–的测定。
The ion chromatography for determining the anions of Cl~–,SO_4~(2–),NO_3~ in soil was established. The eluent was 30 mmol/L KOH solution, isocratic elution with flow rate of 1.0 m L/min. The linear ranges of Cl~–,SO_4~(2–),NO_3~were 0–20 mg/L,the linear correlation coefficients were more than 0.999 9. The detection limits were 0.051–0.082 mg/L for three kinds of anions,the relative standard deviations of mixed standard solution determination results were 0.31%–0.38%(n=10). The relative standard deviations of repetitive determination for soil samples were less than 3%(n=7). The recoveries ranged from 95.0% to 104.5%. The method is simple to operate and the result is accurate,so it is suitable for the determination of Cl~–,SO_4~(2–) and NO_3~ in earthen ruins.
The ion chromatography for determining the anions of Cl~–,SO_4~(2–),NO_3~ in soil was established. The eluent was 30 mmol/L KOH solution, isocratic elution with flow rate of 1.0 m L/min. The linear ranges of Cl~–,SO_4~(2–),NO_3~were 0–20 mg/L,the linear correlation coefficients were more than 0.999 9. The detection limits were 0.051–0.082 mg/L for three kinds of anions,the relative standard deviations of mixed standard solution determination results were 0.31%–0.38%(n=10). The relative standard deviations of repetitive determination for soil samples were less than 3%(n=7). The recoveries ranged from 95.0% to 104.5%. The method is simple to operate and the result is accurate,so it is suitable for the determination of Cl~–,SO_4~(2–) and NO_3~ in earthen ruins.
引文
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[12]杨小秋,李航,万昆,等.离子色谱法测定土壤样品水提取液中的氯离子含量[J].分析仪器,2013(3):6–8.
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[15]李燕飞,苏伯民,范宇权.离子色谱法在文物发掘现场及保护中的应用[J].敦煌研究,2008(6):91–94.
[16]史亚利,刘京生,蔡亚岐,等.文物附着物水浸取液中阴、阳离子的离子色谱法测定[J].分析测试学报,2005,24(2):57–60.
[2]蔺青涛.王旭东.郭青林,等.银川西夏陵3号陵、6号陵盐害现状初步分析[J].敦煌研究,2009(6):75–80.
[3]钱玲,夏寅,胡红岩,等.三门峡虢季墓遗址盐害分析与调查[J].分析测试技术与仪器,2016,22(2):80–89.
[4]黄四平,李玉虎,赵岗,等.唐皇城含光门土遗址盐分病害分析与研究[J].土壤通报,2012,43(2):407–411.
[5]靳治良,陈港泉,夏寅,等.土质文物盐害中硫酸钠的研究—从微观到宏观[J].文物保护与考古科学,2016,28(1):54–62.
[6]NY/T 1378–2007土壤氯离子含量的测定[S].
[7]NY/T 1121.18–2006土壤检测第18部分:土壤硫酸根离子含量的测定[S].
[8]杜宏山,黄选忠,万忠卫.离子色谱法测定纯净水中6种阴离子[J].化学分析计量,2015,24(1):55–57.
[9]黄选忠,邹大喜,杜宏山.离子色谱法测定纯净水中F–,Br O3–等6种阴离子[J].化学分析计量,2016,25(4):38–41.
[10]徐秀丽,刘文全,徐兴永,等.离子色谱法测定土壤中的Cl–和SO42–[J].化学分析计量,2014,23(2):20–22.
[11]于英翠,马爱生,梁圈社,等.酸解–离子色谱测定土壤样品中全量氯的研究[J].安徽农业科学,2013,41(22):9 285–9 289.
[12]杨小秋,李航,万昆,等.离子色谱法测定土壤样品水提取液中的氯离子含量[J].分析仪器,2013(3):6–8.
[13]张树香.离子色谱测定新疆土壤中Cl–,NO3–和SO42–[J].现代科学仪器,2004(5):60–61.
[14]吕亮,刘帅.离子色谱法测定土壤中氯离子的含量[J].农学学报,2011(9):39–42.
[15]李燕飞,苏伯民,范宇权.离子色谱法在文物发掘现场及保护中的应用[J].敦煌研究,2008(6):91–94.
[16]史亚利,刘京生,蔡亚岐,等.文物附着物水浸取液中阴、阳离子的离子色谱法测定[J].分析测试学报,2005,24(2):57–60.