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All Journal BERKALA FISIKA SAINS DAN MATEMATIKA
Takashi Yamamoto
Kyoto University, Japan
Mathematics Physics

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Quantitative Elemental Analysis of Alkaline Metals in Environmental Samples using Liquid Electrode Plasma Optical Emission Spectrometer Hidayanto, Eko; Yamamoto, Takashi; Kawai, Jun
BERKALA FISIKA Vol 12, No 2 (2009): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

Element in bottle drinking water, 100% orange juice and coffee and unknown element and concentration in environmental sample were quantitatively analyzed using a portable elemental analyzer of liquid electrode plasma optical emission spectrometer. In order to carry out this purpose, calibration of known element sample was firstly prepared by measuring its emission intensity in various concentrations. Sodium and potassium were commonly detected by this spectrometer, however other elements such as calcium and magnesium were not detected due to the minimum detection limit. The detected element by this portable analyzer shows that its accuracy is enough for quantitative analysis of environmental samples.
Analysis of Sodium, Potassium and Calcium using a Portable Liquid Electrode Plasma Optical Emission Spectrometer Hidayanto, Eko; Yamamoto, Takashi; Kawai, Jun
BERKALA FISIKA Vol 14, No 1 (2011): Berkala Fisika
Publisher : BERKALA FISIKA

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Elements of sodium (Na), potassium (K) and calcium (Ca) in beverage samples and river water were analyzed with portable liquid electrode plasma - optical emission spectrometer (LEP-OES). The degree of reproducibility for emission intensities and individual variety of a disposal sample chip were investigated, and measuring conditions for quantitative analysis and the precision was discussed. The sensitivity for Na was higher than those for K and Ca by one or two orders of magnitude. Several ppm of Na and K, and several hundred of Ca in aqueous samples could be quantitatively analyzed with 2-30% of deviation without internal standard. The applied voltage was predominant factor for accurate quantitative analysis, and 800 V was found to be the best voltage estimation for quantitative analysis of alkaline metals contents.
ANALYSIS OF ALKALINE AND ALKALINE EARTH METALS IN STANDARD SAMPLES BY LIQUID ELECTRODE PLASMA OPTICAL EMISSION SPECTROMETER Hidayanto, Eko; Yamamoto, Takashi; Kawai, Jun
JURNAL SAINS DAN MATEMATIKA Volume 18 Issue 1 Year 2010
Publisher : JURNAL SAINS DAN MATEMATIKA

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ABSTRACT---Sodium,  potassium and calcium  in  standard sample solution  were analyzed with  a portable analyzer  of  liquid  electrode  plasma optical emission spectrometer  (LEP-OES) to assess  its validity for  quantitative  analysis. Reproducibility  and sensitivity  were  investigated  using  different  disposal  sample chip  and applied voltage.  ln  the applied voltage of  800 V, there is no  increasing period  of emission  intensity by  consecutive measuremenl  and  the  relative  standard deviation  among  chips  was  less  than  20%.  The sensitivity  of  emission  intensity  for  Na  and K  were  proportional  to  the  applied  voltage, but  Ca  wasexponential.  The  sensitivity  was  different  by  kinds  of  element  and  applied  voltage.  According  to  its reproducibility,  the spectrometer would  be used  for quantitative  analysis.Permalink : http://ejournal.undip.ac.id/index.php/sm/article/view/3115
Co-Authors Eko Hidayanto Jun Kawai