甲亚胺-分光光度法测土壤有效硼的研究  

Determination of Available Boron in Soil by Methylimine Spectrophotometry

作　　者：高哲 王辉 吴康 Gao Zhe;Wang Hui;Wu Kang(Radio and Television Measurement and Testing(Xi'an)Co.,Ltd.,Xi'an 710100,China)

机构地区：[1]广电计量检测(西安)有限公司,陕西西安710100

出　　处：《山东化工》2022年第8期111-114,共4页Shandong Chemical Industry

摘　　要：有效硼是农作物生长所需的必要元素,通过测定土壤有效硼的含量,可以为土壤肥力提升提供依据,在农业生产上应用较为广泛。传统测试方法步骤繁琐,重现性差,测试通量较小,成本高。本实验在甲亚胺分光光度法的使用基础上,研究一种稳定、快速、高效的方法。本文通过使用沸水浸提,对比不同浸提时间,不同过滤方式,不同测试方法,进行反复多次测试,并且用有证标准物质进行验证,最终得到一种快速简便准确的测试方法。Available boron is an element needed for crop growth.By measuring the content of available boron in soil,it can provide a basis for improving soil fertility and is widely used in agricultural production.The traditional test method is complicated,poor reproducibility,low test flux and high cost.In this experiment,based on the use of methimine spectrophotometry,a stable,rapid and efficient method was studied.In this paper,through the use of boiling water extraction,comparison of different extraction time,different filtration methods,different testing methods,repeated testing,and with the certification of standard substances for verification,finally get a fast,simple and accurate test method.

关 键 词：土壤有效硼 浸提液 分光光度法 

分 类 号：O652.1[理学—分析化学] S153.6[理学—化学]