Simultaneous Speciation Analysis of Arsenic, Chromium, and Selenium in the Bioaccessible Fraction for Realistic Risk Assessment of Food Safety

Abstract

A simple and fast method was developed for risk assessment of As, Cr, and Se in food, which is demonstrated here using three cooked and uncooked rice samples (basmati as well as organic white and brown rice). The bioaccessible fraction was first determined through online leaching of rice minicolumns (maintained at 37 °C) sequentially with artificial saliva, gastric juice, and intestinal juice while continuously monitoring potentially toxic elements (As, Cr, and Se) by inductively coupled plasma mass spectrometry (ICPMS). Then, a new ion chromatography method with online detection by ICPMS was developed for the simultaneous speciation analysis of As, Cr, and Se in the bioaccessible fraction to determine the portion of these elements that was actually toxic. Using gradient elution, four As species [As(III), As(V), monomethylarsonic acid, and dimethylarsinic acid], two Cr species [Cr(III) and Cr(VI)], and two Se species [Se(IV) and Se(VI)] were separated within 12 min. The simultaneous speciation analysis of As, Cr, and Se revealed that the simple act of cooking can convert all of the carcinogenic Cr(VI) to the safer Cr(III).

The continuous on-line leaching method coupled to inductively coupled plasma mass spectrometry for risk assessment of food safety and for sourcing of elements: a tutorial review

“…1). [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] With this conguration, the sample is wrapped in quartz wool and two quartz wool "plugs" are placed at each end of the mini-column to prevent particulate matter from reaching the nebulizer. Some other studies encountered signicant back-pressure issues when analysing more densely packed samples.…”

Trace Element Content and Food Safety of Traditional Crackers (<i>Kerupuk</i>) Collected from Java Island, Indonesia

“…A safety risk assessment is carried out to ensure the safety of products consumed by the public [12]. According to the World Health Organization, food safety is a science that deals with the preparation, handling, and storage of food and beverages to keep them free of physical, chemical, and biological contaminants.…”

“…Cobalt is also essential for red blood cell development and is an active vitamin B12 to make cobalamin, which is important for nerve function. Heart failure, goiter, hypothyroidism, vomiting, and diarrhea are all symptoms of cobalt insufficiency, commonly known as vitamin B12 deficiency [12].…”

The iron-manganese bimetal-MOF with double mimic enzyme: DFT verification and colorimetric detection of Cr(vi)

“…4 Detecting the content of Cr( vi ) in water is of great significance to environmental control. Currently, Cr( vi ) in environmental samples can be directly determined by many approaches, such as atomic absorption spectrometry (AAS), 5 inductively coupled plasma mass spectroscopy (ICP-MS), 6 surface-enhanced Raman scattering spectroscopy, 7,8 and electrochemical methods. 9,10 However, the requirements of expensive instruments, complex sample pretreatment, and professional operators hinder their application in real-time and on-site detection.…”