Studies on reduction of chloride matrix interferences on determination of germanium using zirconium–ruthenium and palladium–magnesium modifiers by electrothermal atomic absorption spectrometry

Meeravali, Noorbasha N.; Reddy, M. A.; Kumar, Sunil

doi:10.1016/j.sab.2007.04.017

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…86.6 o C, Ge-Cl bond dissociation energy 431 KJ mol −1 ) can occur. 12 Thus, its precise measurement cannot be ensured due to the volatilization of Ge.…”

Section: Introductionmentioning

confidence: 99%

Determination of Trace Elements of Ge and P in a Gold Bonding Wire by Inductively Coupled Plasma Atomic Emission Spectrometry

Choi¹,

Lee

Han³

2008

Bulletin of the Korean Chemical Society

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Inductively coupled plasma atomic emission spectrometry (ICP-AES) was used to determine the presence of germanium and phosphorus in a pure gold bonding wire. The samples were dissolved with hydrobromic acid and nitric acid at room temperature. The quantitation limits were 0.012 mg L −1 at 265.118 nm for Ge and 0.009 mg L −1 at 177.495 nm for P. Using the mixed acid digestion formula of DIW + HBr + HNO 3 , the recoveries were in the range of 98-100% and the relative standard deviation was within 1.1-2.3%. On the other hand, the amount of Ge decreased by about 16.2% using DIW + HCl + HNO 3 , due to the formation of a volatile compound. The Ge contents determined using the external method and the standard addition method were 9.45 mg kg −1 and 9.24 mg kg −1 , respectively, and the P contents, using the same methods, were 22.49 mg kg −1 and 23.09 mg kg −1 , respectively. Both methods were successfully used to determine the trace amounts of P and Ge in the pure gold bonding wire samples.

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“…86.6 o C, Ge-Cl bond dissociation energy 431 KJ mol −1 ) can occur. 12 Thus, its precise measurement cannot be ensured due to the volatilization of Ge.…”

Section: Introductionmentioning

confidence: 99%

Determination of Trace Elements of Ge and P in a Gold Bonding Wire by Inductively Coupled Plasma Atomic Emission Spectrometry

Choi¹,

Lee

Han³

2008

Bulletin of the Korean Chemical Society

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“…Therefore, to better use DFWM to analyze trace Li in actual samples, it is necessary to investigate the effects of abundant impurities on the DFWM signal of Li. Major metallic elements and acid anions are known to be the dominant interferences [18][19][20][21][22] and widely exist in biological and environmental samples. That is, the concomitant ions in the sample can cause Li forming volatile or stable molecules, which may reduce or increase free Li atoms and further influence DFWM signal intensity.…”

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confidence: 99%

Effects of acid anions, major metallic elements, and chlorides on Li detection by DFWM in graphite furnace

Fei¹,

Cheng²,

Yin³

et al. 2014

中国光学快报

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In trace Li analysis with degenerate four-wave mixing (DFWM) method, acid anions and major metallic elements are dominant interferences in Li-containing samples. To better use DFWM technique to analyze trace Li in actual samples, we study their effects on Li DFWM signal intensity. It is found that K, Cs, and Ni can enhance the Li DFWM signal, SO 2-4 , PO 3-4 , Cl-, and Ca can cause significant suppression, and NO 3-, Mg, Ba, Sr, and Na almost have no effects. Finally, we use H 3 BO 3 to eliminate the depressive effects of chlorides on Li DFWM signal. The result is also of reference in other trace elements analysis with DFWM.

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Zirconium in modern analytical chemistry

Печищева

Shunyaev

Melchakova

2018

Reviews in Analytical Chemistry

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Abstract Detailed monographs on the analytical chemistry of zirconium, which is widely used in all fields of modern science and technology, were published in the 1960s–1970s of the last century. This review summarizes information on the modern methods for determination of zirconium in a great variety of natural, technical, and biological objects. Focus is made on the works published in scientific periodicals after 2005. Spectroscopic techniques of zirconium determination including molecular and atomic spectrometry, X-ray fluorescence analysis, and electrochemical and activation methods are described. The paper also describes the applications of zirconium compounds, in particular, in analytical chemistry.

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Studies on reduction of chloride matrix interferences on determination of germanium using zirconium–ruthenium and palladium–magnesium modifiers by electrothermal atomic absorption spectrometry

Cited by 4 publications

References 35 publications

Determination of Trace Elements of Ge and P in a Gold Bonding Wire by Inductively Coupled Plasma Atomic Emission Spectrometry

Determination of Trace Elements of Ge and P in a Gold Bonding Wire by Inductively Coupled Plasma Atomic Emission Spectrometry

Effects of acid anions, major metallic elements, and chlorides on Li detection by DFWM in graphite furnace

Zirconium in modern analytical chemistry

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