Ultrasonication followed by enzymatic hydrolysis as a sample pre-treatment for the determination of Ag nanoparticles in edible seaweed by SP-ICP-MS

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…The table also contained references to a substantial number of enzyme-assisted extraction methods, which have been applied to plant as well as animal tissues. In the determination of AgNPs in seaweed by spICP-MS, 54 the analyte was liberated from the sample matrix by ultrasound-assisted enzymatic hydrolysis optimised in terms of type of sonication (bath vs. ultrasonic probe), ultrasound amplitude, sonication time, sonication mode (pulsed vs. continuous sonication), concentration of the enzymes mixture (Macerozyme R-10), and enzymatic hydrolysis time. The stability of the NPs during extraction was evaluated by TEM for a 15 nm polyvinylpyrrolidone coated AgNP standard.…”

Handheld Microplasma Optical Emission Spectrometer Coupling With Self-Heating Solid-Phase Microextraction For On-Site Detection Of Urinary Lead

“…Atomic spectrometry is considered the gold standard for elemental analysis because of its high sensitivity, excellent selectivity, and qualitative and quantitative analyses of metals. [1][2][3] Therefore, it is widely used in environmental monitoring, [4][5][6][7] food safety, [8][9][10] and public health. [11][12][13][14] Because of its small size, low energy consumption, and atmospheric operation, microplasma has been increasingly utilized as an excitation source for developing miniature, portable atomic emission spectrometers; it has shown great potential for application in field element analysis.…”