连续流动分析仪快速测定甘蔗植株全氮、全磷含量  

Rapid Determination of Nitrogen and Phosphorus in Sugarcane by Continuous Flow Analyzer

作　　者：黄莹[1] 方界群 卢颖林[1] 陈迪文[1] 周文灵[1] 沈大春[1] 敖俊华[1] 江永[1] HUANG Ying FANG Jie-qun LU Ying-lin CHEN Di-wen ZHOU Wen-ling SHEN Da-chun AO Jun-hua JIANG Yong(Guangdong Provincial Bioengineering Institute （Guangzhou Sugarcane Industry Research Institute）/Guangdong Key Lab of Sugarcane Improvement ＆ Biorefinery, Guangzhou 510316)

机构地区：[1]广东省生物工程研究所(广州甘蔗糖业研究所)广东省甘蔗改良与生物炼制重点实验室,广东广州510316

出　　处：《甘蔗糖业》2017年第1期57-61,共5页Sugarcane and Canesugar

基　　金：国家现代农业甘蔗产业技术体系建设项目(CARS-20-3-1);广东省科技计划项目(2014B070705002、2015B070701001、2012A090300015);粤科规财字[2014]208号现代甘蔗种业创新能力建设项目

摘　　要：为快速、准确测定甘蔗植株全氮、全磷含量,采用对比法,探讨连续流动分析仪测定甘蔗植株全氮、全磷含量的适用性和稳定性。结果表明,连续流动仪测定全氮、全磷标准溶液线性良好,相关系数(R2)均达0.9998以上;检出限均为0.01 mg/L,标准偏差分别在0.48%~0.68%、0.23%~0.63%之间,加标回收率分别为93.00%~106.44%、93.33%~109.00%;与常规法相比,利用连续流动分析仪测定甘蔗植株全氮、全磷含量的结果均在允许偏差范围内,说明利用连续流动分析仪快速测定甘蔗植株全氮、全磷是可行的。In order to determine total nitrogen content （N） and total phosphorus content （P） in sugarcane quickly and accurately, the comparison experiments were conducted to study the applicability and stability of N contents and P contents in sugarcane determined by continuous flow analyzer. The results showed good linear regression with correlation coefficient over 0.9998. The method detection limits were both 0.01 mg/L. The precision RSD ranged from 0.48% to 0.68% of N contents and from 0.23% to 0.63% of P contents. The recovery rate was 93%-106.4% and 93.3%-109%, respectively. Compared with the conventional methods, the results of the determination of N contents and P contents in sugarcane by continuous flow analyzer were in the range of allowable deviation. This study explains that the rapid determination method of N contents and P contents in sugarcane by continuous flow analyzer is available.

关 键 词：连续流动分析仪 全氮 全磷 甘蔗 

分 类 号：S566.1[农业科学—作物学]