工作场所空气中磷酸的电感耦合等离子体发射光谱测定法
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摘要
目的建立工作场所空气中磷酸的电感耦合等离子体发射光谱测定法。方法空气中磷酸用微孔滤膜采样,超纯水洗脱,用电感耦合等离子体发射光谱在213.618 nm波长处测定磷酸中磷的含量,以标准曲线法定量。结果该方法在0.5～50μg/ml范围内有良好的线性关系,相关系数为0.999 5。检出限为0.05μg/ml,工作场所空气中最低检出浓度为0.03mg/m3(以采集75 L空气样品计),加标回收率为93.7%～97.3%,相对标准偏差(RSD)为3.7%～5.6%。结论该方法快速、准确,适合工作场所空气中磷酸的测定。
Objective To establish a method for determination of phosphoric acid in the air of workplace by inductively coupled plasma atomic emission spectrometry(ICP-AES). Methods Phosphoric acid in the air of workplace was sampled with micropore filtermem brane and eluted with water. The phosphorus in phosphoric acid was analyzed by ICP-AES at 213.618 nm.Analytes were quantified by standard curve method. Results For the method,good linearity was obtained over the range of 0.5-50 μg/ml,and the correlation coefficients was 0.999 5. The limits of detection was 0.05 μg/ml,the minimum detectable contents was 0.03 mg/m~3 in air of workplace with 75 L sampled air,the average recoveries were 93.7 %-97.3 %,the RSDs were 3.7%-5.6%. Conclusion The established method has high accuracy and is rapid for the determination of phosphoric acid in the air of workplace.
Objective To establish a method for determination of phosphoric acid in the air of workplace by inductively coupled plasma atomic emission spectrometry(ICP-AES). Methods Phosphoric acid in the air of workplace was sampled with micropore filtermem brane and eluted with water. The phosphorus in phosphoric acid was analyzed by ICP-AES at 213.618 nm.Analytes were quantified by standard curve method. Results For the method,good linearity was obtained over the range of 0.5-50 μg/ml,and the correlation coefficients was 0.999 5. The limits of detection was 0.05 μg/ml,the minimum detectable contents was 0.03 mg/m~3 in air of workplace with 75 L sampled air,the average recoveries were 93.7 %-97.3 %,the RSDs were 3.7%-5.6%. Conclusion The established method has high accuracy and is rapid for the determination of phosphoric acid in the air of workplace.
引文
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[2]中华人民共和国卫生部.GBZ/T 2.1-2007.工作场所有害因素职业接触限值化学有害因素[S].
[3]张雪梅，李晨，刘波.车间空气中磷酸测定方法探讨[J].环境与健康杂志，2009,26(11):1022.
[4]沈加圣.工作场所空气中磷酸测定方法探讨[J].山东化工，2015,44(23):69-70.
[5]侯霞，赵雁冰，张文超，等.抗坏血酸还原法测定工作场所空气中的磷酸含量[J].河北农业科学，2017,21(2):105-108.
[6]钟秀霞，黄捷玲，郑力文，等.工作场所空气中磷酸的离子色谱测定法[J].职业与健康，2012,28(6):686-687.
[7]张荣，彭忠梅，李树雄.离子色谱测定法测定工作场所空气中磷酸的研究[J].中国卫生检验杂志，2014,24(1):46-51.
[8]贠建培，刘奋，李添娣，等.工作场所空气中磷酸的采集及测定[J].职业与健康，2016,32(1):624-626.
[9]中华人民共和国国家卫生和计划生育委员会国家食品药品监督管理总局.GB 5009.268-2016.食品安全国家标准食品中多元素的测定[S].
[10]中华人民共和国国家环境保护部.HJ 776-2015.水质32种元素的测定电感耦合等离子体发射光谱法[S].
[11]章明洪，王露，陈剑.电感耦合等离子体发射光谱法测定复混肥料中有效磷含量的研究[J].化肥工业，2018,45(2):1-5.
[2]中华人民共和国卫生部.GBZ/T 2.1-2007.工作场所有害因素职业接触限值化学有害因素[S].
[3]张雪梅，李晨，刘波.车间空气中磷酸测定方法探讨[J].环境与健康杂志，2009,26(11):1022.
[4]沈加圣.工作场所空气中磷酸测定方法探讨[J].山东化工，2015,44(23):69-70.
[5]侯霞，赵雁冰，张文超，等.抗坏血酸还原法测定工作场所空气中的磷酸含量[J].河北农业科学，2017,21(2):105-108.
[6]钟秀霞，黄捷玲，郑力文，等.工作场所空气中磷酸的离子色谱测定法[J].职业与健康，2012,28(6):686-687.
[7]张荣，彭忠梅，李树雄.离子色谱测定法测定工作场所空气中磷酸的研究[J].中国卫生检验杂志，2014,24(1):46-51.
[8]贠建培，刘奋，李添娣，等.工作场所空气中磷酸的采集及测定[J].职业与健康，2016,32(1):624-626.
[9]中华人民共和国国家卫生和计划生育委员会国家食品药品监督管理总局.GB 5009.268-2016.食品安全国家标准食品中多元素的测定[S].
[10]中华人民共和国国家环境保护部.HJ 776-2015.水质32种元素的测定电感耦合等离子体发射光谱法[S].
[11]章明洪，王露，陈剑.电感耦合等离子体发射光谱法测定复混肥料中有效磷含量的研究[J].化肥工业，2018,45(2):1-5.