{"title":"Determination of Iodine in CsGeI3 by Inductively Coupled Plasma Atomic Emission Spectrometry","authors":"Sun Haifeng, Li Tian, Xu Qing, Zhang Lijiu","doi":"10.1134/S1061934825700698","DOIUrl":null,"url":null,"abstract":"<p>An inductively coupled plasma atomic emission spectrometry (<b>ICP–AES</b>) method for the determination of iodine in CsGeI<sub>3</sub> perovskite materials has been developed. The method involves microwave digestion with a hydrochloric-nitric acid system (3 : 1) at 120°C for 10 min, followed by analysis using optimized ICP–AES parameters (radio frequency power: 1150 W, cooling gas flow: 12.5 L/min). The linear range of iodine determination was 1.00–60.00% with a determination coefficient (<i>R</i><sup>2</sup> = 0.999). Recovery rates ranged from 98.6 to 102.1%, and the relative standard deviation (<i>n</i> = 11) was ≤3.4%. The method demonstrated high accuracy and precision, validated through analysis of CsGeI<sub>3</sub> samples from diverse sources.</p>","PeriodicalId":606,"journal":{"name":"Journal of Analytical Chemistry","volume":"80 8","pages":"1454 - 1460"},"PeriodicalIF":1.1000,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Analytical Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1061934825700698","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
An inductively coupled plasma atomic emission spectrometry (ICP–AES) method for the determination of iodine in CsGeI3 perovskite materials has been developed. The method involves microwave digestion with a hydrochloric-nitric acid system (3 : 1) at 120°C for 10 min, followed by analysis using optimized ICP–AES parameters (radio frequency power: 1150 W, cooling gas flow: 12.5 L/min). The linear range of iodine determination was 1.00–60.00% with a determination coefficient (R2 = 0.999). Recovery rates ranged from 98.6 to 102.1%, and the relative standard deviation (n = 11) was ≤3.4%. The method demonstrated high accuracy and precision, validated through analysis of CsGeI3 samples from diverse sources.
期刊介绍：
The Journal of Analytical Chemistry is an international peer reviewed journal that covers theoretical and applied aspects of analytical chemistry; it informs the reader about new achievements in analytical methods, instruments and reagents. Ample space is devoted to problems arising in the analysis of vital media such as water and air. Consideration is given to the detection and determination of metal ions, anions, and various organic substances. The journal welcomes manuscripts from all countries in the English or Russian language.
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