Limiting effects on transport efficiency ETV－ICP的样品负载

仪器资料 · 发表于 2018-6-30 09:02:19

Limiting effects on transport efficiency by matrix load
in inductively coupled plasma optical emission
spectrometry with electrothermal vaporization sample
introduction

Abstract
The combination of an inductively coupled plasma optical emission spectrometer ICP-OES. based on echelle
optics and a segmented charge coupled device detector and electrothermal vaporization sample introduction has
been evaluated for survey analysis. The proposed survey analysis method requires a previous selection of a set of
elements and the addition of a fixed amount of multielemental standard 5 ml. including all the elements of interest.
The linearity of the analyte signal vs. the sample mass vaporized must be checked in order to select the right sample
mass or volume for the analysis. Several certified samples in liquid form have been tested. Results are directly related
with changes in the transport efficiency due to matrix effects and changes in the plasma excitation conditions.
Q 2000 Elsevier Science B.V. All rights reserved.

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