Evaluation of the laser-induced breakdown spectroscopy technique for determination of the chemical composition of copper concentrates

Industrial applications of laser-induced breakdown spectroscopy: a review

“…The industrial applications of LIBS on copperbased alloys, in contrast, are not particularly numerous. Among the few, one that is worthy of mention is the use of LIBS for determining the composition of industrial copper concentrates proposed by Łazarek et al 113 Zinc-alloys (Zamac) were analyzed using LIBS by Messaoud et al 114…”

Dedoped Fe3O4/PPy nanocomposite with high anti-interfering ability for effective separation of Ag(I) from mixed metal-ion solution

“…To evaluate possibly practical application of the magnetic nanocomposite in effective separation of Ag(I) from solutions containing diverse metal ions, we explored the effects of five interfering ions (Mg(II), Cu(II), Zn(II), As(III), and Pb(II)) on selective adsorption of Ag(I) from aqueous solution. The purpose of introducing the aforementioned interfering ions is to explore the feasibility of selective separation of Ag(I) from the solution of copper concentrate, in which the aforementioned metal ions are the main ion components [53]. Fig.…”

An Image Auxiliary Method for Quantitative Analysis of Laser-Induced Breakdown Spectroscopy

“…Extensive research has been conducted to reduce the uncertainty in LIBS measurements. , An increasing number of studies currently focus on spectral correction instead of sample preparation to retain the advantages of LIBS in rapid, in situ, and online analysis. , The internal standard method has been proven to be a useful method for LIBS spectra; , however, selecting the reference line of the internal standard element is difficult, and in certain cases, no appropriate element can be found. Normalization with the intensity of the spectral area or the background emission is also commonly used in LIBS to reduce the influence of the matrix effect and the pulse-to-pulse fluctuation. − Selected associated signals have also been introduced in LIBS as reference signals, such as electrical current , and acoustic waves, , which are generated synchronously with the plasma.…”

“…Extensive research has been conducted to reduce the uncertainty in LIBS measurements. , An increasing number of studies currently focus on spectral correction instead of sample preparation to retain the advantages of LIBS in rapid, in situ, and online analysis. , The internal standard method has been proven to be a useful method for LIBS spectra; , however, selecting the reference line of the internal standard element is difficult, and in certain cases, no appropriate element can be found. Normalization with the intensity of the spectral area or the background emission is also commonly used in LIBS to reduce the influence of the matrix effect and the pulse-to-pulse fluctuation. − Selected associated signals have also been introduced in LIBS as reference signals, such as electrical current , and acoustic waves, , which are generated synchronously with the plasma. Many multivariate analysis methods such as principal component analysis (PCA), neural network (NN), support vector machine (SVM), and partial least-squares (PLS) have been applied in LIBS, , and combinations of these methods have been used for both qualitative analysis and quantitative analysis. , …”