Continuum-source atomic-absorption spectroscopy with an echelle spectrometer adapted to a charge injection device

1990 ◽  
Vol 62 (18) ◽  
pp. 1983-1988 ◽  
Author(s):  
Chunming. Hsiech ◽  
Steven C. Petrovic ◽  
Harry L. Pardue
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Charge Injection ◽  
Injection Device ◽  
Continuum Source ◽  
A Charge ◽  
Echelle Spectrometer

Elemental Analysis with a Plasma Emission Echelle Spectrometer Employing a Charge Injection Device (CID) Detector

1989 ◽  
Vol 43 (1) ◽  
pp. 1-11 ◽  
Author(s):  
R. B. Bilhorn ◽  
M. B. Denton
Keyword(s):  
Elemental Analysis ◽  
Dynamic Range ◽  
Charge Injection ◽  
Emission Spectra ◽  
Atomic Emission ◽  
Plasma Emission ◽  
Injection Device ◽  
Qualitative Comparison ◽  
A Charge ◽  
Echelle Spectrometer

An atomic emission spectrometer which allows simultaneous high-precision digital recording of the ultraviolet spectrum has been developed. The instrument employs both a custom-built echelle spectrometer and a custom-built slow-scan charge injection device (CID) based detector system. The system is capable of measuring the wide dynamic range of signal intensities associated with plasma emission sources, and sensitivity is comparable to that of photomultiplier-tube-equipped instruments. Unprecedented speed and flexibility for elemental analysis are provided by the ability to display background-subtracted emission spectra and to have the computer assist in spectral line identification. The design and performance of the optical system, methodologies for CID detector utilization in analytical spectroscopy, and techniques for wavelength calibration are presented. Examples for qualitative analysis and for the qualitative comparison of similar samples demonstrate the sensitivity, flexibility, and speed of the system.

DETERMINATION OF ARSENIC, CADMIUM, LEAD, COOPER AND ZINC IN DRINKING WATER FROM R. MACEDONIA

2018 ◽  
Vol 28 (4) ◽  
pp. 1259-1264
Author(s):  
Kiril Lisichkov ◽  
Katerina Atkovska ◽  
Neven Trajchevski ◽  
Orce Popovski ◽  
Nadica Todorovska
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Supply System ◽  
Water Supply System ◽  
Bottled Water ◽  
Cadmium Lead ◽  
The City

The presence of some chemical compounds at higher levels than maximum permissible concentrations (MPC) in the drinking water, suggests of water resources pollution. In this paper the following elements were analyzed: total arsenic, cadmium, lead, cooper and zinc. Twelve samples of water from the water supply system from the city of Skopje were examined during one year from three different springs. Also, ten samples of bottled water from three producers from the Macedonian market were tested.The determined average mass concentrations of total As, Cd(II), Pb(II), Cu(II) and Zn(II) in the analyzed water samples from the water supply system are 1.35 μg/l, 0.06 μg/l, 0.6 μg/l, 0.9 μg/l and 1,12 μg/l, respectively, and for the tested bottled water, the mean values ranges from 0.56 - 0.83 μg total As / l, 0.053 - 0.056 μg Cd(II)/l, 0.51 - 0.54 μg Pb(II)/l , 0.6 - 0.87 μg Cu(II)/l and 0.68 - 0.8 μg Zn(II)/l water.The following instrumental analytical methods and techniques were used for the analysis of the tested samples of drinking water: flame atomic absorption spectroscopy (AAS), atomic absorption spectroscopy with hydride cеll, electrothermal atomic absorption spectroscopy.The obtained results are shown in tables and graphic form. According to the obtained results a comparative analysis was carried out indicate that it is a water of good quality that can be used in different branches of the process industry.The obtained results in this paper do not exceed the values of the MPC of the Republic of Macedonia prescribed by the legal regulations for the drinking water, which confirm the health safety of the drinking water from the water supply system in the city of Skopje and the packed waters from the Macedonian market in relation to the tested elements.

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