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| 1 | Novel method for the determination of five carbamate pesticides in water samples by dispersive liquid-liquid microextraction combined with high performance liquid chromatography显示文摘A novel method for the determination of five carbamate pesticides(metolcarb,carbofuran,carbaryl,isoprocard and diethofencard)in water samples was developed by dispersive liquid-liquid microextraction(DLLME)coupled with high performance liquid chromatography-diode array detector(HPLC-DAD).Some experimental parameters that influence the extraction efficiency were studied and optimized to obtain the best extraction results.Under the optimum conditions for the method,the calibration curve was linear in the concentration range from 5 to 1000 ng mL^(-1)for all the five carbamate pesticides, with the correlation coefficients(r^2)varying from 0.9984 to 0.9994.Good enrichment factors were achieved ranging from 80 to 177- fold,depending on the compound.The limits of detection(LODs)(S/N=3)were ranged from 0.1 to 0.5 ng mL^(-1).The method has been successfully applied to the analysis of the pesticide residues in environmental water samples. | Zhi Mei Liu Xiao Huan Zang Wei Hua Liu Chun Wang Zhi Wang | 2009 | Chinese Chemical Letters2009，20，2： | 10 |
| 2 | Determination of triazine herbicide residues in water samples by on-line sweeping concentration in micellar electrokinetic chromatography显示文摘为在由在 micellar electrokinetic 层析(MEKC ) 的联机大规模集中技术的水样品的 atrazine, simazine 和 prometryn 的决心的一个新方法被开发。影响样品丰富和分离效率的各种各样的参数系统地被学习。与常规 MEKC 方法相比,直到在集中的 60200 褶层改进,敏感被使用这种大规模注射技术以山峰高度完成。复合士的宁为试验性的重制度的改进被用作内部标准。为 atrazine, simazine 和 prometryn 的察觉(S/N = 3:1 ) 的限制是 9, 10 和 0.5 ng mL ? 1 分别地。这个方法成功地在湖被用于 atrazine, simazine 和 prometryn 的分析,冒热气并且扎根水。 | Shuai Hua Zhang Yuan Yuan Yang Dan Dan Han Chun Wang Xin Zhou Xiao Huan Zang Zhi Wang | 2008 | Chinese Chemical Letters2008，19，12： | 2 |
| 3 | Current and Passive Smokers Have Poorer Quantity and Quality of Diet in Shanghai, China: A Crosssectional Survey显示文摘Smoking is a major risk factor for chronic diseases,it has been estimated that 300 million adults currently smoke in China,and the smoking prevalence in males is as high as 52.9%,with 1million smoking-related deaths yearly.Therefore,smoking is also a huge health burden in China[1].Researchers have suggested an association between diet and smoking status with respect to both food and nutrient intakes.According to such studies,smokers tended to have a poor diet. | WANG Zheng Yuan LI Li ZANG Jia Jie SHI Ze Huan JIN Wei QI De Yun TANG Chuan Xi GAO Hong Mei WANG Jin Xiang ZHU Zhen Ni JIA Xiao Dong GUO Chang Yi | 2019 | Biomedical and Environmental Sciences2019，32，10： | 2 |
| 4 | On-line Sweeping Sample Concentration in Micellar Electrokinetic Chromatography with Enhanced Sensitivity for the Deter-mination of Carbamazepine in Human Serum显示文摘A sensitive and simple micellar electrokinetic chromatography (MEKC) method was developed for the determination of antiepileptic drug,carbamazepine (CBZ),using sweeping on-line concentration method with photodiode array detection. Under the optimal conditions,the calibration curve was linear over a range of 0.5-40 μg·mL-1 for CBZ with a correlation coefficient of 0.998. The detection limit (S/N = 3:1) of CBZ was 0.10 μg·mL-1. The sweeping-MEKC method has been successfully applied to the analysis of CBZ in human serum. | Dan Dan HAN Chun WANG Zhi WANG Qiu Hua WU Xiao Huan ZANG | 2006 | Chinese Chemical Letters2006，17，7： | 1 |
| 5 | Combination of hollow fiber-based liquid-phase microextraction with sweeping techniques in micellar electrokinetic chromatography for the determination of Strychnos alkaloids in human urine显示文摘A new method for the enrichment of Strychnos alkaloids in biological samples via liquid-phase microextraction (LPME) based on porous polypropylene hollow fibers in combination with on-line sweeping in micellar electrokinetic chromatography was developed. The calibration curve was linear over the range of 20-200 ng mL-1 for both strychnine and brucine in human urine sample. The detection limits (S/N=3:1) for strychnine and brucine were 1 ng mL-1 and 2 ng mL-1, respectively. The LPME-sweeping method has been successfully applied to the analysis of strychnine and brucine in real urine samples. | Xiao Huan Zang Cai Rui Li Qiu Hua Wu Chun Wang Dan Dan Han Zhi Wang | 2007 | Chinese Chemical Letters2007，18，3： | 0 |
| 6 | Real-time monitoring system for quality monitoring of jujube slice during drying process显示文摘The real-time monitoring and prediction system for quality attributes of jujube slices during the drying process was designed to solve the problem of destructive and inconvenient of the traditional quality detection method and realize quality online monitoring.Firstly,machine vision and automatic weighing were employed to monitor the color and moisture content changes of jujube slices in real-time.Secondly,correlation models between color parameter(a^(*)value)and nutritional quality attributes(vitamin C,reducing sugar)were established to predict vitamin C and reducing sugar content of jujube slices during the drying process.Finally,the upper computer monitoring software was integrated and designed based on LABVIEW virtual instrument,and the real-time monitoring system was tested and validated.Results showed that:the changing trends of color(L^(*),a^(*),and b^(*)values)monitored by the system were basically the same as the results detected by color difference meter,and the average errors of L^(*),a^(*),and b^(*)values were 0.93,0.52,and 0.73,respectively.The average relative error of moisture content between the system monitoring and manual static detection was 0.18%.The average error of vitamin C and reducing sugar content between the system prediction and manual detection were 50 mg/100 g in dry basis and 0.71g/100 g in dry basis,respectively.The current work can provide a useful reference for real-time monitoring of quality attributes of fruits and vegetables during the drying process. | Yuxue Cao Xuedong Yao Yongzhen Zang Yubao Niu Hongwei Xiao Huan Liu Rongguang Zhu Xia Zheng Qiang Wang Xiangnan Zhang Shiyu Wei | 2022 | International Journal of Agricultural and Biological Engineering2022，15，3： | 0 |
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