中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 折光率法快速测定控释氯化钾养分释放率 磷肥与复肥 2018 (6) 46-48
Position: Home > Articles > Rapid determination of release rate of controlled-release potassium chloride based on refractive index method Phosphate & Compound Fertilizer 2018 (6) 46-48

折光率法快速测定控释氯化钾养分释放率

作  者：
王畯;张民;刘之广;马金昭;孙玲丽;苏秀荣
单  位：
众德肥料(平原)有限公司;山东农业大学资源与环境学院土肥资源高效利用国家工程实验室
关键词：
折光率;控释氯化钾;释放率;电导率
摘  要：
采用折光率法测定控释氯化钾养分释放特征,以控释氯化钾养分释放率为横坐标、标准溶液折射率为纵坐标绘制标准曲线,相关系数大于0.999。折光率法与电导率法测得数据呈线性关系(y=1.053 5x-0.891 4,r~2=0.998 8),折光率法测得数据的相对标准偏差(RSD)≤0.40%,电导率法RSD≤1.09%。折光率法评价控释氯化钾养分释放特性时操作简便快速,样品用量少,前处理简单,可连续浸提,定量分析,结果更准确。
译  名：
Rapid determination of release rate of controlled-release potassium chloride based on refractive index method
作  者：
WANG Jun;ZHANG Min;LIU Zhiguang;MA Jinzhao;SUN Lingli;SU Xiurong;National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,College of Recourses and Environment, Shandong Agricultural University;Zhongde Fertilizer(Pingyuan)Co.,Ltd.;
关键词：
refractive index;;controlled-release potassium chloride;;release rate;;conductivity
摘  要：
The potassium release characteristic of controlled-release potassium chloride is determined byrefractive index method. The standard curve is drawn with nutrient release rate of controlled-release potassiumchloride as abscissa, refractive indexes as ordinate,the regression coefficient is higher than 0.999. The data ofrefractive index method is linearly related to that of electrical conductivity method, with fitting equation as y =1.053 5 x-0.891 4,r~2= 0.998 8. In the experimental condition, the relative standard deviations of refractiveindex method and electrical conductivity method are ≤0.40% and ≤1.09%respectively. Refractive index methodhas characteristics of less-sample consumption, simple pretreatment, continuous extraction and accurate onevaluation of controlled-release potassium chloride quality in comparation of electrical conductivity method.

相似文章

导出引用
计量
文章访问数: 4
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46