scholarly journals Method development for the determination of elements inHypericum perforatumL. (St John's wort) herb and preparations using inductively coupled plasma–optical emission spectroscopy and microwave digestion

2017 ◽  
Vol 71 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Jade D. Owen ◽  
Sara J. Evans ◽  
Amira Guirguis ◽  
Kathryn Kellett ◽  
Jacqueline L. Stair
Keyword(s):  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Method Development ◽  
Microwave Digestion ◽  
Optical Emission ◽  
Inductively Coupled ◽  
St John's Wort ◽  
Plasma Optical Emission Spectroscopy

Inductively Coupled Plasma Optical Emission Spectroscopy Determination of Trace Element Composition of Argan Oil

2010 ◽  
Vol 16 (1) ◽  
pp. 65-71 ◽  
Author(s):  
A. Gonzálvez ◽  
M.E. Ghanjaoui ◽  
M. El Rhazi ◽  
M. de la Guardia
Keyword(s):  
Trace Element ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Limit Of Detection ◽  
Optical Emission ◽  
Inductively Coupled ◽  
Argan Oil ◽  
Plasma Optical Emission Spectroscopy

A methodology based on inductively coupled plasma optical emission spectroscopy (ICP-OES) after microwave assisted acid digestion has been developed to determine the trace element content of Moroccan argan oil. Limit of detection values equal or lower than few mg/kg were obtained for all elements under study. To assure the accuracy of the whole procedure, recovery studies were carried out on argan oil samples spiked at different concentration levels from 10 to 200 µg/L. Quantitative average recovery values were obtained for all elements evaluated, demonstrating the suitability of this methodology for the determination of trace elements in argan oil samples. Aluminum, calcium, chromium, iron, potassium, lithium, magnesium, sodium, vanadium and zinc were quantitatively determined in Moroccan argan oils being found that their concentration is different of that found in other edible oils thus offering a way for authentication and for the evaluation of possible adulterations.

scholarly journals Determination of Ultratrace Amounts of Ce3 in the Presence of Sm3, La3, Dy3, and Yb3 in Water and Soils by Inductively Coupled Plasma-Optical Emission Spectroscopy After Preconcentration with Thio-Functionalized MCM-41 at Controlled pH

2009 ◽  
Vol 92 (2) ◽  
pp. 555-560 ◽  
Author(s):  
Kamal Saberyan
Keyword(s):  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Optical Emission ◽  
Inductively Coupled ◽  
Solution Type ◽  
Ph Range ◽  
Plasma Optical Emission Spectroscopy ◽  
Mcm 41

Abstract A method is presented for the selective preconcentration and determination of ultratrace amounts of Ce3 ions by inductively coupled plasma-optical emission spectroscopy in the presence of Sm3, La3, Dy3, Yb3, and common interfering ions. In this method, thio-functionalized MCM-41 is used in the preconcentration step. Extraction efficiency and the influence of sample matrix, pH of sample solution, type and minimum amount of tripping acid, and flow rates were investigated. The preconcentration is pH-dependent, and the best results were obtained in the pH range of 8.510.3. The maximum capacity of 2 mg absorbent was found to be 170 4 g. The detection limit of the measurements after the preconcentration step was found to be 114 ng Ce3/L.

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