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3 results on '"Tao, Lin"'

1. Determination of bisultap residue in tropical fruits by ultra performance liquid chromatography-tandem mass spectrometry

Author

Yanhong Zou, Jing Wang, Jinliang Shao, Maoxuan Li, Tao Lin, Xingyong Liu, and Hongcheng Liu

Subjects
Detection limit, Analyte, Chromatography, Chemistry, General Chemical Engineering, Organic Chemistry, Selected reaction monitoring, Pesticide Residues, Food Contamination, Mass spectrometry, Quechers, Biochemistry, Analytical Chemistry, Acetic acid, chemistry.chemical_compound, Tandem Mass Spectrometry, Liquid chromatography–mass spectrometry, Fruit, Electrochemistry, Amine gas treating, Chromatography, High Pressure Liquid
Abstract

A method for the determination of bisultap in tropical fruits was developed by modified QuEChERS method and ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The tropical fruit samples were twice extracted with acetonitrile containing 1% (v/v) acetic acid, and purified by 200 mg of primary secondary amine (PSA), 100 mg of C18, 300 mg of MgSO4 and 500 mg of disodium hydrogen citrate. The analyte was separated on a CAPCELL CORE PC hydrophilic column, detected in the negative ion multiple reaction monitoring (MRM) mode, and quantified by external standard method. A good linear relationship in the range of 0.1-10.0 μg/L was obtained with the correlation coefficient (r2) of 0.9993. The limit of detection and limit of quantification were 0.015 μg/kg and 0.05 μg/kg, respectively. The spiked recoveries were in the range of 81.0%-88.3% with the relative standard deviations from 3.9% to 6.2%. The method has good purification effect and high sensitivity, and is suitable for the rapid analysis of the bisultap residues in tropical fruits.

Published
2018

2. Cervical Screening by Pap Test and Visual Inspection Enabling Same-Day Biopsy in Low-Resource, High-Risk Communities.

Author

Tao, Lin MD, Amanguli, A. MD, Li, Feng MD, PhD, Wang, Ying Hong MD, Yang, Lan MD, Mohemaiti, Meiliguli MM, Zhao, Jin MD, Zou, Xiao Guang PhD, Saimaiti, Abudukeyoumu MD, Abudu, Mirensha MD, Maimaiti, Mikairemu MD, Chen, Shi Yan MD, Abudukelimu, Ruxianguli RN, Maimaiti, Ayinuer MB, Li, Shu Gang PhD, Zhang, Wei MM, Aizimu, Ayinuer MD, Yang, An Qiang MD, Wang, Ju MD, and Pang, Li Juan MD

Subjects
*PAP test, *INSPECTION & review, *ACETIC acid, *BIOPSY, *IODINE deficiency, *EXPRESS service (Delivery of goods), *POVERTY areas, *CERVIX uteri, *COMPARATIVE studies, *DYES & dyeing, *GYNECOLOGIC examination, *IODIDES, *LONGITUDINAL method, *RESEARCH methodology, *MEDICAL cooperation, *RESEARCH, *TIME, *PILOT projects, *EVALUATION research, *PREDICTIVE tests, *EARLY detection of cancer, *CERVICAL intraepithelial neoplasia, CERVIX uteri tumors
Abstract

Objective: To develop an effective, low-cost, single-visit cervical screening strategy incorporating a modified Pap test and visual inspection with acetic acid and Lugol's iodine for low-income settings.Methods: We conducted a prospective cohort trial. Two low-income Muslim Uyghur communities in China's far western Kashi Prefecture served as pilot and validation study sites, respectively, and 4,049 women (aged 30-59 years) were screened. The conventional Pap test was modified using a cotton swab to collect cervical cells without scraping the cervix using an Ayre spatula, allowing visual inspection with acetic acid (and visual inspection with Lugol's iodine if visual inspection with acetic acid was negative) to be performed in a single visit. Results from both tests were available within 1-2 hours. Women positive for either or both underwent same-day biopsy that was shipped by a courier service to a central pathology laboratory.Results: Single-visit screening incorporating both a modified Pap test and visual inspection achieved a sensitivity of 96.0% (95% CI 91.6-100), which was superior to Pap testing (76%, 95% CI 66.3-85.7; P<.001) or visual inspection with acetic acid-visual inspection with Lugol's iodine (48%, 95% CI 36.7-59.3; P<.001) alone in detecting cervical intraepithelial neoplasia (CIN) 2 or worse lesions. Rapid interpretation of both diagnostic procedures facilitated efficient same-day biopsy that achieved a negative predictive value of 98.2% in detecting CIN 2 or worse lesions. The increased sensitivity and minimized loss of follow-up allowed this approach to identify an extremely high prevalence of CIN 1 (2,741/100,000, 95% CI 2,238-3,245/100,000), CIN 2 or 3 (1,457/100,000, 95% CI 1,088-1,826/100,000), and cervical cancer (395/100,000, 95% CI 202-589/100,000) among these underscreened, at-risk women.Conclusion: Single-visit cervical screening with both a modified Pap test and visual inspection has greater sensitivity to detect high-grade CINs, reduces loss of follow-up, and could be an efficient low-cost strategy for low-resource settings. [ABSTRACT FROM AUTHOR]

Published
2018
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3. Relation between mass transfer and operation parameters in the electrodialysis recovery of acetic acid

Author

Lixin Yu, Ji Hua Hao, Qingfeng Guo, and Tao Lin

Subjects
chemistry.chemical_classification, Chromatography, Mechanical Engineering, General Chemical Engineering, Carboxylic acid, General Chemistry, Electrodialysis, Membrane technology, Acetic acid, chemistry.chemical_compound, chemistry, Wastewater, Mass transfer, General Materials Science, Current (fluid), Current density, Water Science and Technology
Abstract

The recovery of acetic acid from dilute wastewater by means of bipolar membrane electrodialysis is studied in more detail. The current efficiency of the electrodialysis recovery of acetic acid from dilute wastewater is related to the current density and other operation parameters. There exists a highest value of current efficiency at optimal current density. The highest concentration of recovered acid is also related to current efficiency. The experimental data are analyzed on a theoretical basis.

Published
2003

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