Extraction and detection of organoarsenic feed additives and common arsenic species in environmental matrices by HPLC–ICP-MS

Enzyme-assisted extraction and liquid chromatography mass spectrometry for the determination of arsenic species in chicken meat

“…The quantitative and reproducible extraction of arsenic species was considered as the most challenging aspect in the speciation analysis of organoarsenicals relevant to chicken feed [47]. Both organic and inorganic arsenic species are expected to be present in chicken.…”

Rapid degradation of p -arsanilic acid with simultaneous arsenic removal from aqueous solution using Fenton process

“…Quantitative analysis of arsenic species was conducted on a 7700x Inductively Coupled Plasma Mass Spectrometer (ICP-MS) hyphenated with a 1200 High Performance Liquid Chromatograph (HPLC) (Agilent, Santa Clara, USA) (Liu et al, 2013). As(III), As(V), and p-ASA (injection volume: 20 mL) were separated on a PRP-X100 anion exchange chromatographic column (5 mm, 4.6 Â 250 mm) (Hamilton, Reno, USA) by isocratic elution with 20% H 2 O and 80% 50 mmol L À1 (NH 4 ) 2 HPO 4 (pH ¼ 5.4, acidified by 0.3% nitric acid) at 1.5 mL min…”

Optimization of microwave‐assisted extraction for six inorganic and organic arsenic species in chicken tissues using response surface methodology

“…The details of the instrumentation and elimination of analysis interferences can be found in our previous studies [23,24]. The sample injection volume was 40 L in HPLC-ICP-MS analysis.…”

“…The sample injection volume was 40 L in HPLC-ICP-MS analysis. The inorganic and organic arsenic species were separated on a Hamilton PRP-X100 anion exchange chromatographic column (4.6 × 250 mm, 5 m) with gradient elution, following the method reported previously [23]. In brief, two mobile phases with a combined flow rate of 1 mL/min were used for separation of the arsenic species: (A) triple-distilled water, and (B) a buffer solution of 50 mmol/L (NH 4 ) 2 HPO 4 with 0.1% v/v TFA and 0.2% v/v HNO 3 at pH 6.0 (adjusted by dilute ammonium hydroxide solution).…”

“…2A-C). Previous studies showed that phosphoric acid and phosphate buffer solutions were much better for extracting arsenic species from environmental samples than water [10,23,28]. Thus (NH 4 ) 2 HPO 4 , a key mobile phase buffer for the HPLC separation, was used as a component in the extraction medium.…”