Electronic Computer Circuit Board Waste Leaching Toxicity Study

2013 ◽  
Vol 448-453 ◽  
pp. 625-629
Author(s):  
Xian Tao Shao ◽  
Wei Lv ◽  
Deng Xin Li
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Circuit Board ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Organic Matter Concentration ◽  
Leaching Toxicity ◽  
Board Test

Select the e-waste in the PC board as the research object, and through microwave-assisted digestion and flip Preparation leaching solution, respectively, using inductively coupled plasma atomic emission spectrometry (ICP-AES) and gas chromatography - mass spectrometry (GC-MS) analysis of the circuit board test results with HJ/T299 set forth in the various elements and organic matter concentration limits comparison shows that a computer circuit board has a leaching toxicity, is hazardous waste for the computer circuit boards harmless and resource provide a reliable theoretical basis.

Photodiode Array Systems for Inductively Coupled Plasma-Atomic Emission Spectrometry

1989 ◽  
Vol 43 (7) ◽  
pp. 1187-1195 ◽  
Author(s):  
Keith C. Lepla ◽  
Gary Horlick
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Circuit Board ◽  
Emission Spectrometry ◽  
Circuit Boards ◽  
Plasma Atomic Emission Spectrometry ◽  
Measurement Systems ◽  
Inductively Coupled ◽  
Photodiode Array ◽  
Computer Controlled

Details are presented for the construction of photodiode array (PDA) measurement systems from commercial components. The PDA systems described include the Hamamatsu S2304–1024Q, a Reticon 1024S using the RC1000 and RC1001 circuit boards, and a Reticon 1024S using the RC1024S circuit board. Detals are presented for computer-controlled clocking and timing circuits, ADC sub-systems, and Peltier cooling subsystems. The measurement characteristics (sensitivity and detection limits) for all arrays are intercompared with the use of analyte emission signals from an inductively coupled plasma.

Silicate analysis of carbonated rocks using ICP-AES with calibration by the concentration ratio

2020 ◽  
Vol 86 (5) ◽  
pp. 16-21
Author(s):  
T. A. Karimova ◽  
G. L. Buchbinder ◽  
S. V. Kachin
Keyword(s):  
Inductively Coupled Plasma ◽  
Concentration Ratio ◽  
Total Error ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Calibration Error ◽  
Plasma Atomic Emission Spectrometry ◽  
Standard Samples ◽  
Inductively Coupled ◽  
Carbonate Materials

Calibration by the concentration ratio provides better metrological characteristics compared to other calibration modes when using the inductively coupled plasma atomic emission spectrometry (ICP-AES) for analysis of geological samples and technical materials on their base. The main reasons for the observed improvement are: i) elimination of the calibration error of measuring vessels and the error of weighing samples of the analyzed materials from the total error of the analysis; ii) high intensity of the lines of base element; and iii) higher accuracy of measuring the ratio of intensities compared to that of measuring the absolute intensities. Calcium oxide is better suited as a base when using calibration by the concentration ratio in analysis of carbonate rocks, technical materials, slags containing less than 20% SiO2 and more than 20% CaO. An equation is derived to calculate the content of components determined in carbonate materials when using calibration by the concentration ratio. A method of ICP-AES with calibration by the concentration ratio is developed for determination of CaO (in the range of contents 20 – 100%), SiO2 (2.0 – 35%), Al2O3 (0.1 – 30%), MgO (0.1 – 20%), Fe2O3 (0.5 – 40%), Na2O (0.1 – 15%), K2O (0.1 – 5%), P2O5 (0.001 – 2%), MnO (0.01 – 2%), TiO2 (0.01 – 2.0%) in various carbonate materials. Acid decomposition of the samples in closed vessels heated in a HotBlock 200 system is proposed. Correctness of the procedure is confirmed in analysis of standard samples of rocks. The developed procedure was used during the interlaboratory analysis of the standard sample of slag SH17 produced by ZAO ISO (Yekaterinburg, Russia).

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