本文選題：膠體鈀 + 全血��； 參考：《中國職業(yè)醫(yī)學(xué)》2016年03期

【摘要】：目的研究以膠體鈀作為基體改進劑在石墨爐原子吸收光譜法測定全血中鉛、鎘、錳的應(yīng)用效果。方法用血樣稀釋劑將全血樣品稀釋10倍后,以膠體鈀為基體改進劑,優(yōu)化待測元素的灰化和原子化溫度后,以石墨爐原子吸收光譜儀檢測全血中鉛、鎘、錳水平,并與普通鈀鹽作為基體改進劑的應(yīng)用效果進行比較。結(jié)果膠體鈀作為基體改進劑的最佳用量為5.00μL;其可將全血中鉛、鎘、錳的灰化溫度分別提高至900、800和1 400℃,將原子化溫度分別提高至1 900、1 800和2 000℃;與普通鈀鹽比較,膠體鈀使3種待測元素有更寬的灰化和原子化溫度范圍。本方法全血中鉛、鎘、錳分別在質(zhì)量濃度0.12~100.00、0.05~4.00和0.02~10.00μg/L呈良好線性關(guān)系,相關(guān)系數(shù)均大于0.999;最低檢出濃度分別為1.20、0.50和0.20μg/L(以樣品稀釋10倍計);平均加標回收率分別為99.2%~104.0%、102.8%~105.5%和98.3%~103.2%;批內(nèi)相對標準偏差(RSD)分別為1.2%~2.6%、2.7%~5.3%和2.3%~2.8%,批間RSD分別為1.6%~3.9%、4.0%~6.1%和3.2%~4.4%。結(jié)論膠體鈀用于測定全血中的鉛、鎘、錳,背景干擾小,有利于改善檢測的精密度和靈敏度,是一種優(yōu)良的基體改進劑。
[Abstract]:Objective to study the application of colloidal palladium as matrix modifier in the determination of lead, cadmium and manganese in whole blood by graphite furnace atomic absorption spectrometry. Methods after the whole blood samples were diluted with blood sample for 10 times, colloidal palladium was used as matrix modifier to optimize the ashing and atomization temperature of the elements to be determined, and the levels of lead, cadmium and manganese in whole blood were determined by graphite furnace atomic absorption spectrometer. The results were compared with that of ordinary palladium salts as matrix modifiers. Results the optimum dosage of colloidal palladium as matrix modifier was 5.00 渭 L, and the ashing temperature of lead, cadmium and manganese in whole blood was raised to 900800 鈩，

本文編號：2108357