scholarly journals Analysis of Mercury in Skin Lightening Cream by Microwave Plasma Atomic Emission Spectroscopy (MP-AES)

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3130
Author(s):  
Hardoko I. Qudus ◽  
Purwadi Purwadi ◽  
Iis Holilah ◽  
Sutopo Hadi

This research aimed at developing an analysis method, which was optimized and validated to determine the content of mercury in skin lightening cream discovered in the market in Bandar Lampung, Indonesia, through the use of microwave plasma atomic emission spectroscopy (MP-AES). The optimization on the analysis method was conducted on pump rate, viewing position, and reductant concentration in order to obtain the highest mercury emission intensity, while the solution stability was optimized to know the stability of mercury in the solution. The result showed that the method developed had precision with a relative standard deviation of 2.67%, recovery value of 92.78%, and linearity with an r value of 0.993, respectively. The sensitivity of the instrument detection had a limit of analysis method detection and quantification of 0.59 and 1.98 µg/L, respectively. The results of the test of the lightening cream (8 of 16 samples) positively contained mercury in the range of 422.61–44,960.79 ng/g. Therefore the method of analysis developed may be used for routine analysis of chemicals in any cosmetics products.

2016 ◽  
Vol 31 (6) ◽  
pp. 1223-1227 ◽  
Author(s):  
C. K. Tanabe ◽  
H. Hopfer ◽  
G. Gilleland ◽  
A. Liba ◽  
S. E. Ebeler ◽  
...  

A new method was developed to determine total As in wine with HG-MP-AES with detection limits of 0.38 μg L−1.


2020 ◽  
Vol 17 (1) ◽  
pp. 159-164
Author(s):  
Camille Merienne ◽  
Chloe Marchand ◽  
Samira Filali ◽  
Damien Salmon ◽  
Karine Vernoux ◽  
...  

Background: Individualized parenteral nutrition requires tailor-made preparation in hospital pharmacy followed by suitable quality control, including electrolytic content determination within complex and variable admixtures, containing up to 50 ingredients. Materials and Methods: An analytical tool has been developed to simultaneously quantify four major electrolytes in parenteral in parenteral nutrition mixtures (i.e., sodium, potassium, magnesium and calcium) using microwave plasma atomic emission spectroscopy (MP-AES). A comparison with reference inducted coupled plasma atomic emission spectroscopy (ICP-AES) was conducted. Calibration standard solutions ranged between 0.2 to 5.0 mg.L-1 for sodium, potassium and calcium and 0.1 to 2.5 mg.L-1 for magnesium. Wavelengths used were respectively 422.6 nm, 517.2 nm, 766.4 nm and 589.5 nm for calcium, magnesium, potassium and sodium, respectively. Accuracy profiles were used for the validation protocol. Results and Conclusion: The analytical protocol using MP-AES demonstrated high throughput and good sensitivity, thus enabling efficient quality control of manufactured individualized parenteral nutrition mixtures.


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