CAJ | 학술논문

针对设施栽培番茄营养信息检测的需求，提出了一种基于多管离子选择性微电极的番茄含氮量快速检测方法。为此，详细讨论了多管离子选择性微电极的拉制、硅烷化、敏感剂充灌和标定等制备过程；通过对现有硝酸根离子和铵根离子敏感剂配方进行试验分析，筛选出了适用于多管离子选择性微电极的硝酸根离子和铵根离子敏感膜。通过番茄叶片样本测试，并与AA 3连续流动分析仪测得的含氮量相比，采用多管离子选择性微电极测得的番茄叶片样本含氮量绝对误差为1．03mg／g，相对误差为3．96％。试验结果表明：采用多管硝酸根离子和铵根离子选择性微电极检测番茄叶片中的含氮量是可行的。该研究可为同时快速检测作物中钾、钙等离子的含量提供参考。
침대설시재배번가영양신식검측적수구，제출료일충기우다관리자선택성미전겁적번가함담량쾌속검측방법。위차，상세토론료다관리자선택성미전겁적랍제、규완화、민감제충관화표정등제비과정；통과대현유초산근리자화안근리자민감제배방진행시험분석，사선출료괄용우다관리자선택성미전겁적초산근리자화안근리자민감막。통과번가협편양본측시，병여AA 3련속류동분석의측득적함담량상비，채용다관리자선택성미전겁측득적번가협편양본함담량절대오차위1．03mg／g，상대오차위3．96％。시험결과표명：채용다관초산근리자화안근리자선택성미전겁검측번가협편중적함담량시가행적。해연구가위동시쾌속검측작물중갑、개등리자적함량제공삼고。
To meet the requirement for nutrition information detection of tomato cultivated in protected agriculture , a method for rapid detection of tomato nitrogen content based on multibarrel ion selective microelectrode was proposed .The preparation process of drawn , silanization , sensitive agent filling , and calibration of multibarrel ion selective microelec-trode were discussed in detail .Through test and analysis of the present sensitive formulation of NO 3-and NH4+, the NO3-and NH4+sensitive membranes which are suitable for multibarrel ion selective microelectrode were screened .In comparison with the nitrogen content detected by AA 3 continuous flow analyzer , the absolute error and the relative error for the nitrogen content of the tomato leaf sample are 1 .03 mg/g and 3 .96%, respectively , through the test of tomato leaf sample by multibarrel ion selective microelectrode .The experimental results showed that:it is feasible to detect the nitro-gen content of tomato leaf by the multibarrel NO 3-ion and NH4+ion selective microelectrode .Besides, this study can provide a reference for detection of the content of potassium and calcium etc .of crops.