scholarly journals Determination of iodine content in milk and food supplements by inductively coupled plasma mass spectrometry (ICP-MS)

2019 ◽  
Vol 2 (1) ◽  
pp. 9-14
Author(s):  
Chien Dinh Viet ◽  
Hieu Pham Cong ◽  
Thoa Nguyen Bao ◽  
Chau Nguyen Minh ◽  
Ha Le Van ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Ammonium Hydroxide ◽  
Iodine Content ◽  
Food Supplements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Good Repeatability

The determination of iodine in milk and food supplements by inductively coupled plasma mass spectrometry (ICP-MS) was investigated. Several parameters of the equipment were optimized automatically such as power of radio frequency, nebulizer gas, and voltage of ion lens. Iodine was extracted from samples by using 2% HNO3 with ultrasonic at 80ºC. Sample solutions were adjusted to the pH of 9÷10 by using ammonium hydroxide, and then filtered by using a 0.45 µm membrane before being analyzed by means of ICP-MS. The method has good repeatability and high recovery efficiency that are suitable for the determination of iodine in milk and food supplements.

Determination of lead isotope ratios in Mn–Fe-rich nodules by laser ablation multi-collector inductively coupled plasma mass spectrometry

2018 ◽  
Vol 33 (12) ◽  
pp. 2143-2152 ◽  
Author(s):  
Zhian Bao ◽  
Chunlei Zong ◽  
Lu Chen ◽  
Danbo Lei ◽  
Kaiyun Chen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Lead Isotope ◽  
Isotope Ratios ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Good Repeatability

In this study, Pb isotope ratios in ferromanganese nodules were determined with good repeatability and minimum laboratory bias using laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS).

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