Simultaneous Determination of Ruthenium, Zinc and Zirconium in Waste Zirconium Dioxide Loaded Ruthenium-Zinc Catalysts Using Inductively Coupled Plasma Optical Emission Spectrometry

2014 ◽  
Vol 989-994 ◽  
pp. 480-483
Author(s):  
Xiao Juan Wei ◽  
Jian Ming Pan
Keyword(s):  
Simultaneous Determination ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Plasma Optical Emission Spectrometry ◽  
Optimized Conditions

A technique for simultaneous determination of Ru, Zn and Zr in waste Ru-Zn/ZrO2catalysts using ICP-OES after sample digestion by high temperature fusion with KOH-KNO3mixture was described. Such experiment conditions were investigated as the influence of sample digestion methods, fusion time, fusion temperature, the dosage of KOH-KNO3mixture and interfering ions on the determination. Under the optimized conditions, the limits of detection (LODs) of Ru, Zn and Zr for tested solutions were 11, 8 and 5 ng mL-1, respectively. The relative standard deviations (RSDs) for Ru, Zn and Zr were 2.01, 2.55 and 1.92 % (CRu, Zn,Zr= 1 mg L-1, n = 7), respectively. The linear ranges of calibration graphs for Ru, Zn and Zr were 0 ~ 100.00 mg L-1, 0 ~ 50.00 mg L-1and 0~60.00 mg L-1, respectively. The proposed method was applied to determine the practical samples with good recoveries and satisfactory results.

Simultaneous Determination of Ruthenium and Zinc in Catalysts for Hydrogenation of Benzene to Cyclohexene Using Sodium Peroxide Fusion Sample Digestion and ICP-OES

2014 ◽  
Vol 1004-1005 ◽  
pp. 1281-1284
Author(s):  
Xiao Juan Wei ◽  
Zhi Quan Tian
Keyword(s):  
Simultaneous Determination ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Plasma Optical Emission Spectrometry ◽  
Novel Method

A novel method for simultaneous determination of ruthenium and zinc in catalysts for hydrogenation of benzene to cyclohexene was established by inductively coupled plasma optical emission spectrometry after sample digestion by high temperature fusion with Na2O2. Such experiment conditions were investigated as the influence of sample digestion methods, fusion time, fusion temperature, the dosage of Na2O2and interfering ions on the determination. Under the optimized conditions, the limits of detection (LODs) of Ru and Zn for tested solutions were 11 and 13 ng mL-1, respectively. The relative standard deviations (RSDs) for Ru and Zn were 2.01 and 2.35 % (CRu, Zn= 1 mg L-1, n = 7), respectively. The linear ranges of calibration graphs for Ru and Zn were 0.05 ~ 100.00 mg L-1and 0.04 ~ 50.00 mg L-1, respectively. The proposed method was applied to determine catalyst samples with good recoveries and satisfactory results.

Determination of Ruthenium in Waste Ruthenium Catalysts Using Inductively Coupled Plasma Optical Emission Spectrometry after Sample Digestion by High Temperature Fusion

2014 ◽  
Vol 1033-1034 ◽  
pp. 603-606 ◽  
Author(s):  
Jian Ming Pan ◽  
Xiao Juan Wei
Keyword(s):  
High Temperature ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Ruthenium Catalysts ◽  
Emission Spectrometry ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Plasma Optical Emission Spectrometry

A technique for determination of Ru in waste ruthenium catalysts using ICP-OES after sample digestion by high temperature fusion with NaOH-NaNO3mixture was described. Such experiment conditions were investigated as the influence of sample digestion methods, fusion time, fusion temperature, the dosage of NaOH-NaNO3mixture and interfering ions on the determination. Under the optimized conditions, the limits of detection (LODs) of Ru for tested solutions were 10 ng mL-1. The relative standard deviations (RSDs) for Ru were 2.01 (CRu= 1 mg L-1, n = 7). The linear ranges of calibration graphs for Ru were 0 ~ 100.00 mg L-1. The proposed method was applied to determine the practical samples with good recoveries and satisfactory results.

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