【摘要】：本論文主要研究簡單、快速、靈敏的電化學(xué)檢測氯胺T和脫氫乙酸鈉的方法,其在環(huán)境分析和食品安全檢測領(lǐng)域都有著重要意義。實(shí)驗(yàn)采用電流-時(shí)間法檢測氯胺T。即直接檢測氯胺T氧化對氨基苯硼酸產(chǎn)生的對苯醌亞胺,以此間接檢測氯胺T。對苯醌亞胺僅用裸的玻碳電極在低電位下極易檢測。此方法具有高的靈敏性、寬的檢測范圍和良好的選擇性。在50 nM-100μM的濃度范圍內(nèi)有兩條線性,檢測限是6 nM。對比其他電化學(xué)分析方法,本實(shí)驗(yàn)方法的檢測限低三個(gè)數(shù)量級。脫氫乙酸鈉是常見的食品添加劑和防腐劑,可作為有效的聯(lián)吡啶釕電化學(xué)發(fā)光共反應(yīng)劑。脫氫乙酸鈉在1.0μM-1.0 mM的濃度范圍內(nèi)有兩條線性,檢測限是0.27μM。此方法也可用于烘焙面包中脫氫乙酸鈉含量的檢測,且具有滿意的回收率。
[Abstract]:In this paper, a simple, rapid and sensitive electrochemical method for the detection of chloramine T and sodium dehydroacetate is studied, which is of great significance in the field of environmental analysis and food safety detection. The method of current-time method was used to detect chloramines. That is, the direct detection of chloramine T oxidation of p-aminoborate boric acid p-benzoquinone imine, so as to indirectly detect chloramine T. P-benzoquinone imine is easily detected with bare glassy carbon electrode at low potential. This method has high sensitivity, wide detection range and good selectivity. In the concentration range of 50 nM-100 渭 M, there are two linear lines, and the detection limit is 6 nM.. Compared with other electrochemical analysis methods, the detection limit of this method is three orders of magnitude lower. Sodium dehydroacetate is a common food additive and preservative, which can be used as an effective bipyridine ruthenium electroluminescent co-agent. In the concentration range of 1.0 渭 M-1.0 mM, sodium dehydroacetate has two linear lines, and the detection limit is 0.27 渭 M. The method can also be applied to the determination of sodium dehydroacetate in baked bread with satisfactory recovery.
【學(xué)位授予單位】：長春理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：O657.1;TS213.21

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本文編號：2317597