Publication details
Selection of internal standards for analysis of silicate rocks and limestones by laser ablation inductively coupled plasma atomic emission spectrometry
| Authors | |
|---|---|
| Year of publication | 1996 |
| Type | Article in Periodical |
| Magazine / Source | Fresenius Journal of Analytical Chemistry |
| MU Faculty or unit | |
| Citation | |
| Field | Analytic chemistry |
| Keywords | Inductively Coupled Plasma; Atomic Emission Spectrometry; Laser Ablation; Silicates; Lithiumtetraborate Fusion; |
| Description | Included (Si, Ca) and added (Li, B) internal standards (IS) have been used comparatively in LA-ICP AES of silicates and limestones to improve both precision and accuracy. A Q-switched Nd:YAG laser (355 nm, 10 Hz, 10 mJ per shot) has been applied for ablation, Samples have been prepared by fusion with Li2B4O7 and measured using a Perkin-Elmer Optima 3000 ICP system, Both types of IS have given a relative standard deviation (RSD) less than 2-1%, which improved the repeatability by a factor of 2-10 and calibration graphs have been linear over the whole concentration range. |
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