Analysis of trace atrazine and simazine in environmental samples by liquid chromatography–fluorescence detection with pre-column derivatization reaction

Gong, Aijun; Ye, Changming

doi:10.1016/s0021-9673(98)00742-0

Cited by 24 publications

(12 citation statements)

References 15 publications

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“…Yet, recent publications describe the appearance of atrazine in groundwater worldwide (cf. [28][29][30][31]), and hence research on the degradation of this water contaminant continues (cf. [32,33]).…”

Section: Introductionmentioning

confidence: 99%

Products and Kinetics of the OH-radical-induced Dealkylation of Atrazine

Tauber

Sonntag

2000

Acta hydrochim. hydrobiol.

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Hydroxyl radicals, generated radiolytically in N2O/O2‐saturated solutions, yield in their reaction with atrazine equal amounts of deethylatrazine and acetaldehyde (40% of OH radical yield) and deisopropylatrazine and acetone (16%), respectively. The precursors of deethylatrazine and acetaldehyde is their Schiff base which hydrolyzes slowly (OH–‐catalyzed: k = 5.2 dm3 mol–1 s–1). The hydrolysis of the Schiff base of deisopropylatrazine and acetone is too fast to be detected. In a pulse radiolysis experiment, the intermediate formed upon OH‐radical attack (k = 3·109 dm3 mol–1 s–1) has a strong absorption at 440 nm. It decays in the presence of oxygen (k = 1.3·109 dm3 mol–1 s–1), and upon deprotonation [pKa(peroxyl radicals) ≈ 10.5] the peroxyl radicals thus‐formed eliminate superoxide radicals (k = 2.9·105 s–1). s‐Triazine itself reacts much more slowly with OH radicals (k = 9.7·107 dm3 mol–1 s–1). This can explain, why in the case of atrazine in comparison to other aromatic compounds, e.g. toluene, the addition of the OH radical to the ring (estimated at ca. 40%) is of relatively little importance as compared to an H‐abstraction from (activated) positions of the side groups.

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Section: Introductionmentioning

confidence: 99%

Products and Kinetics of the OH-radical-induced Dealkylation of Atrazine

Tauber

Sonntag

2000

Acta hydrochim. hydrobiol.

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“…27 -40 2013 Table 1 The detailed literature overview reveals that the most popular procedure for atrazine extraction from soil samples is liquid-solid extraction (LSE), carried out with shaking, sonication or in the presence of microwaves. Usually methanol, mixture of methanol-water (different proportions) [2,8,16,17,28,33,37,46,47,49,53] acetonitrile, acetonitrile -water, or acetonitrile-hexane (different proportion) [1,14,22] or chloroform [4] are used. In some cases solid phase extraction (SPE) on octadecyl (C18), phenylsulfonyl acid (PhSO 3 H) or multi-walled carbon nanotubes (MWNTs) sorbents was carried out [2,4,33,37,44,47].…”

Section: Archives Of Environmental Protectionmentioning

confidence: 99%

“…whereas with DAD detection: 2.0 μg/L, 0.5 ng/g [5,21,42,45,52]. According to Gong [16], fl uorescence detection enables to detect pesticides at 1.2 ng/g level. The lowest value of LOD (0.188 ng/g) was obtained by means of LC -MS/MS by Jablonowski [20].…”

Section: Archives Of Environmental Protectionmentioning

confidence: 99%

Simultaneous Determination of Selected Insecticides and Atrazine in Soil by Mae–GC–ECD

Barchańska¹,

Czalicka²,

Giemza³

2013

Archives of Environmental Protection

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Abstract:The procedure for simultaneous extraction from soil and determination by means of GC-ECD insecticides: aldrin, dieldrin, endrin and herbicide: atrazine was worked out. The proposed GC-ECD technique provides limits of detection in range 12 μg/mL -18 μg/mL and 2 μg/mL, for insecticides and atrazine, respectively. Two different types of extraction: microwave assisted extraction (MAE) and ultrasound assisted extraction (UAE) with different solvents were tested to choose the procedure that provides the highest recoveries of analytes and low detection limits, typical for trace analysis (100 ppm or 100 mg/g, IUPAC). On the basis of recoveries and precision both extraction methods were compared. The insecticides recovery from soil samples obtained by UAE were in range 40-85%, coeffi cient of variation (CV): 1.3-5.0%, whereas for atrazine recovery was below 15% (CV: 8-18%). The most effi cient and precise extraction procedure turned out to be MAE with n-hexane: acetone. The recoveries were in range 70-85% for insecticides and 84% for atrazine, CV: 0.4-2.2% and 5.3% for insecticides and atrazine, respectively. The presented MAE-GC-ECD procedure enables extraction and determination of aldrin, dieldrin, endrin and atrazine in soil samples with high recoveries, precision and limits of detections in range 6 ng/g -8 ng/g in the case of insecticides and 1.5 ng/g for atrazine.The MAE-GC-ECD procedure was applied for the above mentioned pesticides determination in environmental samples. Soils were collected in agricultural as well as rural areas in Poland. In all cases atrazine was determined in concentration range: 0.0187 mg/g -0.1107 mg/g. Aldrin and dieldrin was detected in soil samples from two locations.

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“…In previous studies, the quantitative analyses of simazine include pre-column derivatization liquid chromatographic fluorescence detection (LC-FL) [12], antigen-coated tube enzyme-linked immune Molecules 2016, 21, 89 2 of 8 sorbent assay (ELISA) [13], high-performance liquid (HPLC) [14], gas chromatography coupled with mass spectrometric detection (GC-MS) [15] as well as liquid chromatography-tandem mass spectrometry (LC-MS/MS) [16][17][18]. Recently, LC-MS/MS has been widely applied in trace analysis of pesticides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Isotopically Labeled 13C3-Simazine and Development of a Simultaneous UPLC-MS/MS Method for the Analysis of Simazine in Soil

et al. 2016

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Abstract:The isotope dilution mass spectrometry (IDMS) is a highly efficient method for tackling the ion suppression in complex matrix by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), but a lack of commercial internal standards is a limiting factor for these analyses. Herein, an economical and efficient strategy for the synthesis of 13 C 3 -simazine via a three-step procedure was developed. The isotope-labeled internal standard was used for determination of simazine residue in soil samples. The quantitation method has a limit of detection of 0.015 µg/kg and quantitation of 0.08 µg/kg. The inter-day and intra-day precision of the method were below 4.6%. Recovery values were ranged between 92.9% and 99.2%. All the samples obtained from six provinces in China contained from 1 to 62 µg/kg of simazine.

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Analysis of trace atrazine and simazine in environmental samples by liquid chromatography–fluorescence detection with pre-column derivatization reaction

Cited by 24 publications

References 15 publications

Products and Kinetics of the OH-radical-induced Dealkylation of Atrazine

Products and Kinetics of the OH-radical-induced Dealkylation of Atrazine

Simultaneous Determination of Selected Insecticides and Atrazine in Soil by Mae–GC–ECD

Synthesis of Isotopically Labeled 13C3-Simazine and Development of a Simultaneous UPLC-MS/MS Method for the Analysis of Simazine in Soil

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