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Rapid elemental composition analysis of spinach samples employing wavelength dispersive X-ray fluorescence spectroscopy
Spectroscopy Letters ( IF 1.7 ) Pub Date : 2021-05-31 , DOI: 10.1080/00387010.2021.1926286
Harpreet Singh Kainth, Tejbir Singh, Deeksha Khandelwal, Gurjeet Singh, Sanjiv Puri

Abstract

The increasing demand to carry out nondestructive analysis with minimal sample preparation for the detection of chlorine element in the spinach samples requires advanced analytical techniques with better energy resolution. The emergence of wavelength dispersive X-ray fluorescence instruments offers new chances for fast and inexpensive plant leaf analysis, both as laboratory and in-situ-based systems. Earlier efforts to use X-ray fluorescence analyses for various plant samples, especially spinach leaves, were limited by the large background caused by scattering of the primary X-ray source which has been overcome by using the commercial wavelength dispersive technique. It is a potential influential research tool for the study of trace elemental composition analysis under different analytical parameters and simple sample preparation protocols. In the present work, the chlorine content ∼0.8% has been measured in the spinach leaf standard reference material (SRM 1570a) from the National Institute of Standards and Technology, USA by using the wavelength dispersive X-ray fluorescence technique employing a fundamental parameter approach. Keeping in view the importance of the knowledge about the chlorine content in plant leaf samples and the reliability of the methodology used in the present work to determine chlorine content, it is recommended that the present measured chlorin.e concentration be included in the datasheet of certified values by the National Institute of Standards and Technology, the USA for effective use of this standard reference material.



中文翻译:

采用波长色散 X 射线荧光光谱法对菠菜样品进行快速元素组成分析

摘要

以最少的样品制备进行无损分析以检测菠菜样品中的氯元素的需求不断增加,需要具有更高能量分辨率的先进分析技术。波长色散 X 射线荧光仪器的出现为快速和廉价的植物叶片分析提供了新的机会,无论是作为实验室系统还是基于原位的系统。早期对各种植物样品(尤其是菠菜叶)使用 X 射线荧光分析的努力受到初级 X 射线源散射引起的大背景的限制,而这已被商业波长色散技术所克服。它是研究不同分析参数和简单样品制备方案下的微量元素组成分析的潜在影响研究工具。在目前的工作中,使用波长色散 X 射线荧光技术采用基本参数方法测量了美国国家标准与技术研究所菠菜叶标准参考物质 (SRM 1570a) 中的氯含量约为 0.8% . 考虑到植物叶片样品中氯含量知识的重要性以及目前确定氯含量的工作所用方法的可靠性,建议将当前测得的氯离子浓度包含在经认证的数据表中。美国国家标准与技术研究所提供的有效使用此标准参考材料的值。通过使用采用基本参数方法的波长色散 X 射线荧光技术,在美国国家标准与技术研究所的菠菜叶标准参考材料 (SRM 1570a) 中测量了 8%。考虑到植物叶片样品中氯含量知识的重要性以及目前确定氯含量的工作所用方法的可靠性,建议将当前测得的氯离子浓度包含在经认证的数据表中。美国国家标准与技术研究所提供的有效使用此标准参考材料的值。通过使用采用基本参数方法的波长色散 X 射线荧光技术,在美国国家标准与技术研究所的菠菜叶标准参考材料 (SRM 1570a) 中测量了 8%。考虑到植物叶片样品中氯含量知识的重要性以及目前确定氯含量的工作所用方法的可靠性,建议将当前测得的氯离子浓度包含在经认证的数据表中。美国国家标准与技术研究所提供的有效使用此标准参考材料的值。

更新日期:2021-06-25
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