電感耦合等離子體發(fā)射光譜法測定磷酸中磷的含量研究
發(fā)布時間:2018-06-06 22:22
本文選題:電感耦合等離子發(fā)射光譜 + 磷酸; 參考:《無機鹽工業(yè)》2017年11期
【摘要】:電感耦合等離子體發(fā)射光譜儀(ICP-OES)通常用于測定微量元素含量,具有檢測精度高、可以一次測定大量樣品的優(yōu)點。創(chuàng)新性地將其應用于磷酸中主要元素磷的含量測定,研究了待檢溶液的配制方法、檢測波長選擇,并由此建立了檢測方法。通過加標回收、重復性檢測驗證了方法的可靠性。將該方法與磷鉬酸喹啉重量法做對比檢測,F檢驗分析表明這2種方法檢測精密度無明顯差異。相對于磷鉬酸喹啉重量法測定磷酸中的磷含量,ICP-OES方法具有制樣簡便、一次可測定大量樣品、檢測速度快的優(yōu)點,可大大降低檢測人員的工作強度、提高檢測效率。該方法已制定為貴州省地方標準發(fā)布。
[Abstract]:Inductively coupled plasma emission spectrometer (ICP-OES) is usually used to determine trace elements, which has the advantages of high precision and can be used to determine a large number of samples at a time. It has been creatively applied to the determination of phosphorus in phosphoric acid. The preparation method and wavelength selection of the solution to be tested have been studied, and the detection method has been established. The reliability of the method was verified by standard addition and recovery. Compared with quinoline phosphomolybdate gravimetric method, the precision of the two methods was not significantly different. Compared with the method of quinoline phosphomolybdate gravimetric determination of phosphorus in phosphoric acid, the ICP-OES method is simple and convenient for sample preparation, it can be used to determine a large number of samples at one time, and has the advantages of fast detection speed, which can greatly reduce the working intensity of the examiners and improve the detection efficiency. The method has been issued for Guizhou Province local standards.
【作者單位】: 貴州省產(chǎn)品質(zhì)量監(jiān)督檢驗院;貴州川恒化工有限責任公司;
【基金】:貴州省社發(fā)科技攻關(guān)項目(黔科合SY字[2013]3089號);貴州省社發(fā)科技攻關(guān)項目(黔科合SY字[2014]3068號) 貴州省優(yōu)秀人才培養(yǎng)計劃(黔科合平臺人才[2017]5621)
【分類號】:O657.31;TQ126.35
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本文編號:1988310
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