Poster Number 35
See more from this Division: General Discipline Sessions
See more from this Session: Geochemistry; Geochemistry, Organic (Posters)
Abstract:
Rock type materials are one of the more complex matrices to analyze. With potential element ranges from ppm to high %, whole rock analysis (WRA) has required various methods of preparation from pressed pellets to fusions. This discussion describes a low dilution fusion method (2:1 flux to sample) encompassing a variety of matrices to produce good reproducibility while maintaining favorable lower limits of detection using a low powered (50W) bench top WDXRF system. Besides the 10 common major elements, 11 traces were also analyzed.
Even though the benchtop XRF system used here is small and utilizes a low power tube it is still able to produce good lower limit of detections (LLD). Light elements such as sodium respond with enough signal to produce an LLD of just less than 0.1% while the majority of the trace component LLDs are about 10 ppm or less.
See more from this Division: General Discipline Sessions
See more from this Session: Geochemistry; Geochemistry, Organic (Posters)