The Determination of Trace Amounts of Tin by Inductively Coupled Argon Plasma Atomic Emission Spectrometry with Volatile Hydride Method

1983 ◽  
Vol 37 (6) ◽  
pp. 539-545 ◽  
Author(s):  
Taketoshi Nakahara
Keyword(s):  
Argon Plasma ◽  
Standard Reference Materials ◽  
Emission Spectrometry ◽  
Present System ◽  
National Bureau ◽  
Plasma Atomic Emission Spectrometry ◽  
Linear Calibration ◽  
Inductively Coupled ◽  
Relative Standard

A sensitive method is described for the determination of trace amounts of tin, based on continuous sodium borohydride reduction of tin in solution to gaseous stannane. The stannane generated is introduced into a relatively low-powered (1.6 kW) inductively coupled argon plasma source. The effects of a range of acids and interelement effects are investigated. Mixtures of nitric and succinic acids and of nitric and malic acids are the most suitable reaction media, especially in the presence of interferents. The method of standard additions is recommended for accurate tin determination. Compared to a conventional solution nebulization, the present system gives a sensitivity increase of a factor of approximately 3 orders of magnitude. The detection limit for tin is 0.05 ng/ml and precision values at 20 and 50 ng/ml Sn are less than 3% relative standard deviation. The linear calibration range spans nearly 5 orders of magnitude. The proposed method is applied to the determination of tin in low alloyed steels and in National Bureau of Standards standard reference materials (Cu-Ni alloy, orchard leaves, wheat flour, and rice flour).

Determination of Rhodium in Rhodium-Loaded Carbon Catalysts Using Microwave-Assisted Sample Digestion and ICP-OES

2014 ◽  
Vol 1033-1034 ◽  
pp. 53-56 ◽  
Author(s):  
Jun Yi Pan ◽  
Xiao Juan Wei
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Novel Method ◽  
Carbon Catalysts

A novel method for the determination of rhodium in rhodium-loaded carbon catalyst samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by microwave oven with aqua regia. Such experiment conditions were investigated as the influence of sample digestion methods, digestion time, digestion temperature and interfering ions on the determination. Under the optimized conditions, the limits of detection (LODs) of Rh for tested solutions were 9 ng mL-1. The relative standard deviations (RSDs) for Rh were 2.11 (CRh = 1 mg L-1, n = 7). The linear ranges of calibration graphs for Rh were 0 ~ 150.00 mg L-1. The proposed method was applied to determine the practical samples with good recoveries and satisfactory results.

Determination of Metal Elements in Maca from Different Areas by Inductively Coupled Plasma-Atomic Emission Spectrometry

2014 ◽  
Vol 978 ◽  
pp. 19-22 ◽  
Author(s):  
Hong Bo Han ◽  
Qin Dong ◽  
Yi Diao ◽  
Hui Ping Wei ◽  
Min Jie Li
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Relative Standard

In this paper, the contents of these elements including Cu, Fe, Mn, Zn, Al, Cd, Pb, Ti and As were determined by ICP-AES technique, which elements originated from maca from different places. Detection limits ranged 0.0022 ug/ml-1 and 0.077ug/ml-1, the relative standard deviations for all these elements were lower than 2%, and recovery rates ranged 95.56% and 106.2%. The results showed that there were rich metal elements in maca from different places; contents of Fe and Al were highest; contents of Mn, Zn, Cu and Ti were moderately high, and contents of As, Cd and Pb were lowest. Futhermore, Cu, Fe, Mn, Zn were essential to people’s health, and Al, Cd, As, Pb and Ti had potentially physiologically toxic. Finally, concentrations of elements within macafrom different places were different, which may have some relations with the environment where maca grew. As a result, the determining method which elements of maca. are determined by ICP-AES is rapid, accurate and convenient, and wild macamay contain toxic elements because of pollutional soil and environment, so macacultivated artificially can effectively reduce harmful elements.

scholarly journals Titanium and Chromium Determination in Feedstuffs Using ICP-AES Technique

Separations ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Eleni Tsanaktsidou ◽  
George Zachariadis
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Acid Digestion ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Chromium Determination ◽  
Accuracy And Repeatability

The present study represents the determination of Ti and Cr in dry animal feeds using wet acid digestion and inductively coupled plasma–atomic emission spectrometry (ICP-AES), in order to use these metals as digestibility markers. A radiofrequency power of 1350 W and a nebulizer argon flow of 0.8 L/min was selected. The limits of detection were between 11.4 and 16.1 μg/g for titanium and between 10.7 and 38.2 μg/g for chromium. The recovery values for the aqueous solutions were 89.5–103.9% (titanium) and 85.3–104.2% (chromium), with relative standard deviations (RSD%) under 2.1% and standard errors under 2.32%, demonstrating that the method offered good accuracy and repeatability. Six different samples of commercially available feedstuffs (two cat foods, two dog foods, and two poultry foods) were analyzed and the levels of investigated metals were found to be in the ranges of 0.10 g/kg and <LOD for chromium and titanium, respectively (dog foods); 0.10–0.18 g/kg, 0.70 g/kg for chromium and titanium, respectively (cat foods); and 0.07 g/kg, 0.82–1.35 g/kg for chromium and titanium, respectively (poultry foods).

Article

1999 ◽  
Vol 77 (8) ◽  
pp. 1405-1409
Author(s):  
Kwang-Soon Choi ◽  
Kih-Soo Joe ◽  
Steven L Mitchell ◽  
Candace J Everall ◽  
Keith R Betty
Keyword(s):  
Inductively Coupled Plasma ◽  
Zirconium Alloys ◽  
Atomic Emission ◽  
Standard Reference Materials ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Complexing Agent ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled

The determination of trace silicon by inductively coupled plasma - atomic emission spectrometry in samples containing HF is inhibited by the high blank caused by attack of the quartz torch. Use of a proprietary commercial amine to neutralize the HF and increase the pH to between 7 and 7.5 allows the simultaneous determination of silicon and other impurities in zirconium or zircaloy samples. The determination of silicon in steels requires the addition of an auxiliary complexing agent to the amine solution to prevent precipitation of iron(III). The analytical results obtained for several Standard Reference Materials (SRMs) with and without the amine reagent agree well with one another, and also with the certified values.Key words: silicon, zirconium, zirconium alloys, steel, amine neutralization.

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