Determination of cadmium in herbs by SFODME with ETAAS detection

Thongsaw, Arnon; Chaiyasith, Wipharat Chuachuad; Sananmuang, Ratana; Ross, Gareth; Ampiah-Bonney, Richmond J.

doi:10.1016/j.foodchem.2016.09.177

Cited by 40 publications

(14 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PF is defined as the volume ratio of analyte in the initial phase (V aq ) to the extracting phase (V o ). ER defined as the percentage of analyte extracted from the aqueous solution into the extracting phase, is calculated using following Equations, :

EF = \frac{C_{0}}{C_{aq}}

PF = \frac{V_{aq}}{V_{0}}

ER = \frac{((), C_{0} V_{0})}{((), C_{aq} V_{aq})} \times 100 %

where V o and V aq are the extracting phase volume (20 μL) and the initial aqueous sample volume (10.0 mL), respectively. A calibration curve was constructed by direct injection of standard solutions in 1‐undecanol at concentrations of 5, 10, 25, 50 and 75 μg/mL, respectively, using GC–FID analysis.…”

Section: Resultsmentioning

confidence: 99%

Solidification of floating organic droplet microextraction for determination of seven insecticides in fruit juice, vegetables and agricultural runoff using gas chromatography with flame ionization and mass spectrometry detection

Hoisang

Nacapricha

Wilairat

et al. 2019

J of Separation Science

View full text Add to dashboard Cite

Liquid microextraction employing solidification of the floating organic droplet, with vortexing and heating to optimize extraction efficiency, was developed for the determination of seven insecticides in fruit juice, vegetables, and agricultural runoff water. The extracts were analyzed by gas chromatography with both flame ionization and mass spectrometry detection for the determination of chlorpyrifos, prothiofos, profenofos, ethion, λ-cyhalothrin, permethrin, and cypermethrin, respectively. Using 20 μL of 1-undecanol in 10 mL of aqueous solution containing 1% w/v sodium chloride provided preconcentration factor of 500. The enrichment factor of the analytes was in the range of 355 to 509 with extraction recovery >71%. The linearity ranges were 4-200 μg/kg for gas chromatography with flame ionization detection and 1-100 μg/kg for gas chromatography with mass spectrometry, with limits of detection ranging from 0.04 to 1.2 μg/kg, which are lower than the international maximum residue limits for vegetables and fruit juice. Intra-day and inter-day precisions are less than 5.4 and 7.0% relative standard deviation, respectively. The method was successfully applied to the determination of the seven insecticides in samples of vegetables, fruit juice and agricultural runoff, with recoveries ranging from 61.7 to 120.8%. The extraction method is simple, efficient and environmentally friendly.

show abstract

EF = \frac{C_{0}}{C_{aq}}

PF = \frac{V_{aq}}{V_{0}}

ER = \frac{((), C_{0} V_{0})}{((), C_{aq} V_{aq})} \times 100 %

Section: Resultsmentioning

confidence: 99%

Solidification of floating organic droplet microextraction for determination of seven insecticides in fruit juice, vegetables and agricultural runoff using gas chromatography with flame ionization and mass spectrometry detection

Hoisang

Nacapricha

Wilairat

et al. 2019

J of Separation Science

View full text Add to dashboard Cite

show abstract

“…These methods are; flame or electrothermal atomic absorption spectrometry, atomic fluorescence spectrometry, voltammetry and inductively coupled plasma optical emission spectrometry [11,12]. The determination of trace elements such as aluminum, arsenic, cadmium, antimony, lead, iron, barium, zinc, manganese, copper, nickel, chromium, mercury and vanadium in various plant leaves and flowers, their teas, tinctures and herbal medicine was carried out by different researchers [13][14][15][16][17][18][19]. When the concentrations of the metal ions in the sample are lower than the detection limit of the method, using a preconcentration method before determination becomes very important.…”

Section: Introductionmentioning

confidence: 99%

Vortex-assisted magnetic solid phase extraction of Pb and Cu in some herb samples on magnetic multiwalled carbon nanotubes

Kamaş¹,

Karatepe²,

Soylak³

2021

Turk J Chem

View full text Add to dashboard Cite

show abstract

“…Cadmium as one of the most dangerous elements is abundant in the form of cadmium oxide in nature. 1 In general, cadmium in food sources is considered to be a real global challenge. 2 The main source of cadmium in the human body is the food chain.…”

Section: Introductionmentioning

confidence: 99%

Amino-modified Graphene Oxide/Fe<sub>3</sub>O<sub>4</sub> for Dispersive Solid-Phase Extraction of Cadmium Ions in Rice, Lentil, and Water Samples

2020

View full text Add to dashboard Cite

In this study, amino groups were directly coated on reduced graphene oxide sheets and applied for the extraction of cadmium(II) ions from well water, aqueduct (water coming from mountain), lentils and rice prior to measurements by flame atomic absorption spectrometry. The properties of the adsorbent were investigated by field emission scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray, Fourier-transform infrared spectroscopy and a vibrating sample magnetometer. Some parameters related to the adsorption and desorption stages were optimized. After preconcentration, the linear determination range of cadmium(II) was 0.5-40 μg L-1. The limit of quantification, relative standard deviation and preconcentration factor were obtained as 0.5 μg L-1 , 0.39-2.18% and 100, respectively.

show abstract

Determination of cadmium in herbs by SFODME with ETAAS detection

Cited by 40 publications

References 29 publications

Solidification of floating organic droplet microextraction for determination of seven insecticides in fruit juice, vegetables and agricultural runoff using gas chromatography with flame ionization and mass spectrometry detection

Solidification of floating organic droplet microextraction for determination of seven insecticides in fruit juice, vegetables and agricultural runoff using gas chromatography with flame ionization and mass spectrometry detection

Vortex-assisted magnetic solid phase extraction of Pb and Cu in some herb samples on magnetic multiwalled carbon nanotubes

Amino-modified Graphene Oxide/Fe<sub>3</sub>O<sub>4</sub> for Dispersive Solid-Phase Extraction of Cadmium Ions in Rice, Lentil, and Water Samples

Contact Info

Product

Resources

About