14.23 Wet Chemical Methods (pH, Electrical Conductivity, Ion-Selective Electrodes, Colorimetric Analysis, Ion Chromatography, Flame Atomic Absorption Spectrometry, Inductively Coupled Plasma-Atomic Emission Spectroscopy, and Quadrupole Inductively Coupled Plasma-Mass Spectrometry)

2013 ◽  
pp. 274-281
Author(s):  
C. Chagué-Goff, ◽  
H.K.Y. Wong
2003 ◽  
Vol 86 (6) ◽  
pp. 1225-1231 ◽  
Author(s):  
Laurent Noël ◽  
Thierry Guérin ◽  
Jean-Marc Frémy ◽  
Hélène Huet ◽  
Martine Kolf-Clauw

Abstract A rapid procedure, based on closed vessels microwave digestion and inductively coupled plasma-mass spectrometry (ICP-MS), was evaluated to ascertain the effect of chronic exposure to cadmium on intracellular accumulation of minor and essential trace elements in cultured epithelial cells (Caco-2 TC7). For all measurements, the method of external calibration was used and 3 elements (Be, Sc, In) were selected as internal standards. Optimization procedures are discussed and results are presented for the total determination of 9 key analytes (Na, Mg, Ca, Cr, Mn, Cu, Zn, Mo, and Cd) in certified reference materials (CRMs) and 20 samples of Caco-2 TC7 cells long-term exposed to Cd. The performance characteristics of the analytical system were evaluated by calibration and linearity, limits of detection and quantitation, accuracy with spiking, trueness and repeatability with available CRMs. As a complement to the ICP-MS determinations, both available CRMs and cell samples were analyzed either by electro thermal-or flame atomic absorption spectrometry. The results were in good agreement with the ICP-MS results.


2020 ◽  
Vol 21 (3) ◽  
pp. 119
Author(s):  
Hasria Hasria ◽  
Arifudin Idrus ◽  
I Wayan Warmada

Pada proses alterasi hidrotermal, reaksi batuan samping dengan fluida hidrotermal yang melewatinya akan  menyebabkan perubahan komposisi (oksida/unsur) pada batuan yang dilewati maupun pada fluida itu sendiri. Perhitungan perubahan oksida/unsur bertujuan untuk menentukan oksida/unsur dalam batuan yang bertambah atau berkurang karena proses alterasi hidrotemal, dilakukan dengan menggunakan analisis ICP-AES (Inductively Coupled Plasma Atomic Emission  Spectroscopy) dan ICP-MS (Inductively Coupled Plasma Mass Spectrometry). Hasil penelitian menunjukkan bahwa oksida/unsur yang immobile umumnya relatif tidak mengalami perubahan komposisi selama proses alterasi hidrotermal berlangsung,  sedangkan oksida/unsur mobile umumnya mengalami penambahan dan pengurangan selama proses alterasi hidrotermal berlangsung. Pada alterasi propilitik, oksida/unsur mobile yang mengalami penambahan adalah As, Zr, Cu, Sb, Ca, CaO, MgO, MnO dan SiO2 dan yang mengalami pengurangan adalah U, Th, Co, Sn, Sr, Nb, Ba, K, Au, Pb, Zn, V, Fe, K2O, Na2O dan Fe2O3. Pada alterasi serisitik, oksida/unsur mobile yang mengalami penambahan adalah Sb, Zr, Ag, Pb, K, Na2O, SiO2 dan yang mengalami pengurangan  adalah U, Th, Co, As, Nb, Ba, Sn, Sr, Ca, S, Au, V, Zn, Cu, Fe, K2O, MnO, CaO, MgO, Fe2O3. Pada alterasi argilik, oksida/unsur mobile yang mengalami penambahan adalah  Sb, Fe, S, Cu, Zr, Ba, As, Au, Zn, V, dan SiO2 sedangkan yang cenderung mengalami pengurangan adalah Ca, U, Th, Nb, Sn, Sr, Co, Pb, K, CaO, Na2O, MnO, MgO, K2O dan Fe2O3.Katakunci : Alterasi hidrotermal, Pegunungan Rumbia, Kabupaten Bombana, perubahan oksida/unsur, mobile, immobile.


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