Effect of matrix temperature on the LIBS signal of Au

Abstract

In the field of gold exploration, low sensitivity and poor reproducibility are the main problems that hinder the application of LIBS technology. In this paper, an experimental system for lateral...

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…This has been shown again by Zou et al who determined the effect of temperature of gold samples and of artificial samples with differing Au content (0, 400, 600, 700, 800 and 1000 mg kg −1 ) on the Au signal. 55 The analytical procedure, including the instrumental parameters, were provided in the text. An average of 300 measurements over 30 different spots on the gold foil were made to minimise unexpected measurement fluctuations.…”

Effect of liquid aerosol temperature on the detection performance of LIBS for analysis of phosphorus element in water

“…In addition, the sample temperature has a signicant effect on the laser ablation crater (mass and volume) and rate, [18][19][20][21][22][23] signal intensity, 24 signal-to-noise ratio (SNR), 25 plasma properties (dynamic, morphology, temperature, and electron density), 18,21,[26][27][28][29][30][31][32][33] experimental conditions (defocusing amount, laser energy, and delay time), [34][35][36][37] self-absorption, 38 and detection performance (repeatability, accuracy, and sensitivity) 27,[39][40][41][42] of LIBS. These have been veried on a solid sample (e.g.…”

“…These have been veried on a solid sample (e.g. aluminum, aluminum alloy, steel, iron, slag, glass, silicon, soil, rock, gold, copper, brass, copperzinc alloy, molybdenum-tungsten alloy, magnesium, germanium, titanium, inconel superalloys, nickel, tissue, and particles), 19,20,22,23,[25][26][27][28][29][30][31][32][33][34]36,[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59] gas sample, 39 and liquid sample (water, molten metals, and molten salts) 60-65 by many researchers. For example, increasing the sample temperature results in a larger mass and volume of the laser ablation crater, stronger signal intensity and SNR, higher plasma temperature and electron density, and improved detection performance.…”

Effect of sample temperature on femtosecond laser ablation of copper

“…Wang et al [15] simulated the thermal behaviors of Cu at different sample temperatures by using a one-dimensional heat transfer equation, finding that more substances were ablated as the Cu target was heated. Zou et al [16] studied the ablation behavior at different matrix temperatures, finding that rising the matrix temperature will improve the ablation volumes.…”