Determination of Palladium in Waste Palladium-Loaded Carbon Catalyst Samples Using Microwave-Assisted Sample Digestion and ICP-OES

2014 ◽  
Vol 644-650 ◽  
pp. 5281-5284
Author(s):  
Chun Miao Shi ◽  
Xiao Juan Wei
Keyword(s):  
Inductively Coupled Plasma ◽  
Absorption Spectrometry ◽  
Atomic Emission ◽  
Calibration Graph ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Carbon Catalyst ◽  
Sample Digestion ◽  
Relative Standard

A novel method for the determination of palladium in palladium-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 linear range of calibration graph for Pd was 0 ~ 250.00 mg L-1, and the recovery was 97.89% ~ 102.00%. The relative standard deviation (RSDs) for Pd was 1.93 %. The proposed method was applied to determine the same samples with atomic absorption spectrometry with the results consistently, which is suitable for the determination of palladium in palladium-loaded carbon catalyst samples.

Determination of Rhodium in Rhodium Octanoate Organic Waste Liquid Using Teflon Pressure Vessel-Assisted Sample Digestion and ICP-OES

2014 ◽  
Vol 644-650 ◽  
pp. 5266-5269
Author(s):  
Jian Ming Pan ◽  
Xiao Juan Wei
Keyword(s):  
Inductively Coupled Plasma ◽  
Organic Waste ◽  
Absorption Spectrometry ◽  
Atomic Emission ◽  
Calibration Graph ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Liquid Samples ◽  
Relative Standard

A novel method for the determination of rhodium in rhodium octanoate organic waste liquid samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by Teflon pressure digestion vessel with aqua regia. Such experiment conditions were investigated as the influence of sample dissolution methods, digestion time, digestion temperature and interfering ions on the determination. Under the optimized conditions, the linear range of calibration graph for Rh was 0 ~ 150.00 mg L-1, and the recovery was 96.20% ~ 102.36%. The relative standard deviation (RSDs) for Rh was 1.75 %. The proposed method was applied to determine the same samples with atomic absorption spectrometry with the results consistently, which is suitable for the determination of rhodium in rhodium octanoate organic waste liquid samples.

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.

scholarly journals Determination of Nine Elements in Sherry Wine by Inductively Coupled Plasma-Atomic Emission Spectrometry

1996 ◽  
Vol 79 (5) ◽  
pp. 1191-1197 ◽  
Author(s):  
Miguel lópez-Artíguez ◽  
Ana M Camean ◽  
Manuel Repetto
Keyword(s):  
Inductively Coupled Plasma ◽  
Absorption Spectrometry ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Relative Standard

Abstract A quick and simple method was developed to analyze various "fino" sherry wines for routine determination of Al, Ca, Cu, Fe, K, Mg, Mn, Na, and Zn content. The analysis involved heating the wine sample in an oven at 80°C to evaporate the ethanol, followed by sequential determination of the elements by inductively coupled plasma-atomic emission spectrometry. The following metal concentrations (mg/L) were obtained: Al, 1.02-4.06; Ca, 85.00-150.00; Cu, 0.06-1.62; Fe, 2.19-4.91; K, 435.02-651.65; Mg, 79.1-108.57; Mn, 0.37-2.13; Na, 27.09-54.26; and Zn, 0.12-5.08. Mean recoveries of elements from fortified wines were 101.6% for Al, 103.6% for Ca, 97.4% for Cu, 100.3% for Fe, 100.7% for K, 103.6% for Mg, 99.1% for Mn, 105.7% for Na, and 99.99% for Zn. The estimated detection limits were 15.2 μg Al/L, 39.9 μg Ca/L, 20.1 μg Cu/L, 19.1 μg Fe/L, 116.4 μg K/L, 20.3 μg Mg/L, 20.2 μg Mn/L, 34.6 μg Na/L, and 25.4 μg Zn/L. The repeatability relative standard deviation ranged from 1.1 (Mg) to 5.3% (Na), and the reproducibility relative standard deviation ranged from 2.0 (Mg) to 9.3% (Al). The results were compared with those obtained y flame atomic absorption spectrometry and, for Al, by graphite furnace atomic absorption spectrometry. By the method for regression lines we demonstrated that no differences in concentrations were obtained for any of the elements assayed. The proposed method is rapid and simple, needs only a small amount of sample, and has acceptable analytical characteristics.

Determination of Rhodium in Waste Rhodium-Loaded Carbon Catalyst Samples Using Teflon Pressure Vessel-Assisted Sample Digestion and ICP-AES

2014 ◽  
Vol 998-999 ◽  
pp. 35-38 ◽  
Author(s):  
Xiao Juan Wei ◽  
Jian Ming Pan
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Carbon Catalyst ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Sample Dissolution ◽  
Novel Method

A novel method for the determination of rhodium in waste rhodium-loaded carbon catalyst samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by Teflon pressure digestion vessel with aqua regia. Such experiment conditions were investigated as the influence of sample dissolution methods, digestion time, digestion temperature and interfering ions on the determination. The results indicated that the digestion effect was optimum with samples digested 8 hour at 180 °C. Al, Fe, Mg, Ca and Si in samples had no effect on the determination of rhodium. Experiment indicated rhodium concentration within the range of 0 ~ 150 mg L-1 had a linear relation with emission intensity. The recovery was 99.20% ~ 100.73 %, and the relative standard deviation was 1.8 %. A satisfactory result was obtained when applying the proposed method in the practical sample.

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).

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