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Fluorescence strip sensor for sensitive determination of prometryn in foods

One Health Advances 2023年第1期1卷 268-275页

作者： Weifang Gu Steven Suryoprabowo Lingling Guo Aihong Wu Liqiang Liu Chuanlai Xu Affiliated Hospital of Jiangnan University Wuxi 214122China State Key Lab of Food Science and Technology School of Food Science and TechnologyJiangnan UniversityWuxiJiangsu 214122China

We report the development of a sensitive,fast,and simple method for the detection of prometryn(PRO)in potato and celery using a lateral flow immunochromatographic assay(LFIA).A monoclonal antibody(mAb)against PRO was prepared under optimized conditions,and the 50%inhibition concentration(IC50)for use in ELISA was determined to be 0.6 ng mL−***,the cut-off value for use in an LFIA was 50 ng mL−*** validate the reliability of the developed LFIA strip,real samples were used,and the recovery rate was found to be 99.3-104.3%.The assays were completed within 8 min,demonstrating the suitability of our developed methods for the detection of PRO in potato and celery.

关键词： Fluorescence immunochromatographic test Monoclonal antibody prometryn Strip test

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Bioaccumulation and Elimination Rule of prometryn inHard Clam Meretrix meretrix

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Animal Husbandry and Feed Science 2018年第4期10卷 231-235页

作者： zhang wang fan guangyu meng xianglong wang teng chen xiukai mang qi Lianyungang Customs Lianyungang 222042 China 不详

The bioaccumulation and elimination rule of prometryn in hard clam Meretrix meretrix were studied under semistatic conditions. Whenthe water temperature was （12±1）℃, M. meretrix were exposed to the seawater containing 1, 10, and 100 μg/L prometryn. The content of prometrynin M. meretrix increased with the increase of exposed concentration, and both had significant positive correlation. The accumulation of prometryn inM. meretrix first increased then decreased, and finally fluctuated at a certain level. The maximum accumulation content was observed in M. meretrixwhen exposed to prometryn for 10, 14 and 18 d, and the maximum bioaccumulation factors （BCFs） were 22.9, 8.3 and 4.3, respectively. At the forthday of the elimination test, the content of prometryn in M. meretrix of each group were decreased above 50%. At the 22ndday of the elimination test,the content of prometryn in M. meretrix were decreased to 8.7%, 5.6% and 2.6% of the initial content in the elimination test, respectively. The results indicated that hard clam M. meretrix had strong bioaccumulation and elimination ability on prometryn.

关键词： Meretrix meretrix prometryn Bioaccumulation Elimination

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Evaluation of Commercial Active Carbons for the Removal of s-Triazine Herbicides from Waters

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Journal of Chemistry and Chemical Engineering 2011年第2期5卷 135-140页

作者： Francisco J. Rojas Moreno Manuel De La Fuente Darder Rafael MAarin Galvin Manuel Mayen Jose M.Rodriguez Mellado E.M.A.C.S.A. （Cordoba City Water Management Facility） ST. De los Plateros number 1 Cordoba E-14006 Spain Inorganic Chemistry and Chemical Engineering Department University Campus ＂Rabanales ＂＂Marie Curie＂ Building Cordoba University Cordoba E-14014 Spain Department of Agricultural Chemistry and Soil Science University Campus ＂Rabanales ＂＇＂Marie Curie＂ Building Cordoba University Cordoba E-14014 Spain Physical Chemistry and Applied Thermodynamics Department University Campus ＂Rabanales ＂＂Marie Curie＂ Building Cordoba University Cordoba E-14014 Spain

The adsorption capacity of powdered active carbons, used in a water treatment facility, for the removal of the triazine herbicides propazine, prometryn and prometon, was evaluated. Kinetic studies showed that some of the carbon samples used could be suitable in the practice for the treatment of moderate contents of the herbicides in contaminated waters. Equilibrium studies showed that the data fit the Frumkin isotherm. The results show that in the adsorption process there are repulsive lateral interactions that depend mainly of the adsorbate molecules rather than the nature or distribution of adsorption sites. Such lateral interactions seem to be established mainly between the isopropyl groups of adjacent molecules, being of the same order for the three molecules. The effectiveness of the active carbons was evaluated by determining the percentage of reduction achieved by each product.

关键词： Active carbon adsorption triazine herbicides herbicides removal propazine prometryn prometon

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