Investigation of a Method for Multielement Determination with OPTIMA 4300ICP-OES

仪器资料 · 发表于 2018-8-8 18:12:47

Investigation of a Method for Multielement Determination with OPTIMA 4300 (ICP-OES)
We have studied and optimized the analytical conditions for quick, multielement analysis
by inductively coupled plasma optical emission spectrometry (ICP-OES). The detection
limit (LD) of 47 elements measured in total at 100 wavelengths have been evaluated for
both plasma viewing modes; for axial viewing the LD vary from 0.00009 to 0.1 μg/g . The
axial plasma offered an approximately 1 ~ 83 -fold improvement in detection limits, while
the radial plasma maintained a superior linear dynamic range. Using a dual view plasma
instrument to measure waste water samples we got coincident results. The relative standard
deviation (RSD) was between 0.1% to 15% by axial view and about 1% to 30% by
radial view. After a series of different blank preparations and measurement by ICP-OES,
we found that the source of a high Al blank signal was the automatic sampling system
(Dispensette HF). The effect of possible Fe, Pb and Li2B4O7 matrix interferences at 100
wavelengths of the multielement method have been discussed qualitatively.

请点击此处下载

请先注册会员后在进行下载

已注册会员，请先登录后下载