"Development of Raman scattering spectroscopy in environmental w
「"Development of Raman scattering spectroscopy in environmental w」於資料集「EPQSummary_EnvironmentalMonitoringAndTesting」由單位「行政院環境保護署」的陳先生所提供,聯繫電話是02-2311-7722#2386,最近更新時間為:2023-07-30 01:01:45。 欄位Project Title的內容是"Development of Raman scattering spectroscopy in environmental water pollutant test" , 欄位Project Subject的內容是"The goal of this project is to detect pollutants in real water with surface-enhanced Raman scattering (SERS). The pollutants are cyanide and chromium (VI) that were selected for last year’s project. The project targets are three folds: (1) developing new mix-type internal standard method for chromium (VI); (2) developing pretreatment procedure and quantitative analysis method for cyanide in real water samples; (3) developing method to differentiate between chromium (III) and chromium (VI) in water.
For the first target, we have derived a linear relation between the ratio of the SERS signal of internal standard compound between the samples with and without chromium (VI). With this linear formula, we have determined the concentration of chromium (VI) with great accuracy, thus developing a mix-type internal standard method. For the second target, we have developed a sample pretreatment procedure for real water samples, have used the concentration curve of cyanide in water to determine the sample concentration directly, and finally have extracted the cyanide concentration by fitting the obtained data obtained from standard addition method to the nonlinear concentration formula of cyanide. For the third target, we have proved that the SERS signal of chromium (III) in water is non-recognizable and have developed a SERS method to detect it: A chelating agent is first used to form chelant with chromium (III) and the SERS method then detects the chelant. The limit-of-dection concentration of this method is below 0.05 mg/L." , 欄位Project Year的內容是2016 , 欄位Organizer的內容是"Environmental Analysis Laboratory" , 欄位Executive Unit的內容是"中央研究院原子與分子科學研究所" , 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=171941 , 欄位Publish Date的內容是20180701 。
Project Title
"Development of Raman scattering spectroscopy in environmental water pollutant test"
Project Subject
"The goal of this project is to detect pollutants in real water with surface-enhanced Raman scattering (SERS). The pollutants are cyanide and chromium (VI) that were selected for last year’s project. The project targets are three folds: (1) developing new mix-type internal standard method for chromium (VI); (2) developing pretreatment procedure and quantitative analysis method for cyanide in real water samples; (3) developing method to differentiate between chromium (III) and chromium (VI) in water. For the first target, we have derived a linear relation between the ratio of the SERS signal of internal standard compound between the samples with and without chromium (VI). With this linear formula, we have determined the concentration of chromium (VI) with great accuracy, thus developing a mix-type internal standard method. For the second target, we have developed a sample pretreatment procedure for real water samples, have used the concentration curve of cyanide in water to determine the sample concentration directly, and finally have extracted the cyanide concentration by fitting the obtained data obtained from standard addition method to the nonlinear concentration formula of cyanide. For the third target, we have proved that the SERS signal of chromium (III) in water is non-recognizable and have developed a SERS method to detect it: A chelating agent is first used to form chelant with chromium (III) and the SERS method then detects the chelant. The limit-of-dection concentration of this method is below 0.05 mg/L."
Project Year
2016
Organizer
"Environmental Analysis Laboratory"
Executive Unit
"中央研究院原子與分子科學研究所"
Reporting download URL
Publish Date
20180701
「"Development of Raman scattering spectroscopy in environmental w」所屬的資料集:「EPQSummary_EnvironmentalMonitoringAndTesting」的其他資料
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