Search

Your search keyword '"Bai, Huahua"' showing total 28 results
Start Over Author "Bai, Huahua"
28 results on '"Bai, Huahua"'

12. Preparation of Polyamidoamine Dendrimer Modified Magnetic Nanoparticles and Its Application for Reliable Measurement of Sudan Red Contaminants in Natural Waters at Parts-Per-Billion Levels

Author

Wu, Yalin, primary, Bai, Huahua, additional, Zhou, Qingxiang, additional, Li, Shuangying, additional, Tong, Yayang, additional, Guo, Jinghan, additional, Zhou, Boyao, additional, Li, Zhi, additional, Zhan, Yali, additional, Liu, Menghua, additional, Li, Yanhui, additional, and Qu, Tongxu, additional

Published
2021
Full Text
View/download PDF

14. A comprehensive study of volatile organic compounds from the actual emission of Chinese cooking

Author

Li Guo'ao, Nie Lei, Cheng-Yi Sun, Liyun Zhao, Chen Xue, Bai Huahua, and Aijun Shi

Subjects
Air Pollutants, China, Volatile Organic Compounds, Ozone, Waste management, Health, Toxicology and Mutagenesis, Beijing, Environmental Chemistry, Environmental science, General Medicine, Cooking, Pollution, Environmental Monitoring
Abstract

China’s current perspective for big cities were filled with great population, great number of restaurants, growing gaseous pollutants and great pollution. Volatile organic compounds (VOCs) were main components of catering industry gaseous pollutants. In this study, we collected and analyzed VOCs from Home cooking (HC), Sichuan and Hunan cuisine (S&H), Shandong cuisine (SD), Anhui cuisine (AH), Beijing cuisine (BJ) and Barbecue (BBQ). The result showed that BBQ gave the highest VOCs concentration (6287.61 µg•m− 3), followed by HC (1806.11 ± 2401.85 µg•m− 3), SD (2238.55 ± 2413.53 µg•m− 3), AH (1745.89 µg•m− 3), S&H (1373.58 ± 1457.45 µg•m− 3) and BJ (288.81 µg•m− 3). The abundance of alkane was higher among BBQ, Anhui Cuisine and HC with the proportion from 33–71%. SD contained higher halohydrocarbons proportion (33%). BJ characterized by high-oxygenated volatile organic compounds proportion (50%). The ozone formation potential (OFP) of BBQ was much greater than other cuisines. The degree of stench pollution from cooking VOCs of HC was 17.51 ± 16.95, followed by S&H (15.77 ± 16.85), SD (15.12 ± 14.17), AH (16.29), BBQ (2.58) and BJ (1.81). Benzene had highest life cancer risk (LCR) in SD (2.11⋅10− 5 ± 3.12⋅10− 5), following HC (4.50⋅10− 6 ± 3.83⋅10− 6) and S&H (4.08⋅10− 6 ± 4.49⋅10− 6). Acrolein had a high hazard index (HI) in HC (789.81 ± 768.77), following AH (728.78), S&H (689.89 ± 776.07), SD (664.29 ± 648.77), BBQ (65.93) and BJ (62.84).

Published
2021

20. Contract Marriage: His Sweet Wife and Cutest Twin Babies : Volume 12

Author

Bai HuaHua, Lemon Novel, Bai HuaHua, and Lemon Novel

Abstract

After her parents had both died in an accident, she had to sign an agreement with him to save her family's company. It was stated in the agreement that he would save her company on the condition that she would allow him to do whatever he wanted with her.Just because she resembled the woman he had once loved, he had toyed with her a million times and tortured her in every possible way.He humiliated her in front of others and then abandoned her. She had loved him, but had suffered.It wasn't until the agreement expires that she finally ran away from him. By the time she left, she was already pregnant.A few years later, she brought her adorable child back and became strong and cold-blooded. When they met again, he doted on her so much …•••

Published
2020

28. Preconcentration sensitive determination of pyrethroid insecticides in environmental water samples with solid phase extraction with SiO2 microspheres cartridge prior to high performance liquid chromatography

Author

Zhou, Qingxiang, Gao, Yuanyuan, Bai, Huahua, and Xie, Guohong

Subjects
*INSECTICIDES, *PYRETHROIDS, *WATER sampling, *SOLID phase extraction, *SILICA, *HIGH performance liquid chromatography, *ULTRAVIOLET detectors, *SORBENTS, *HYDROGEN-ion concentration
Abstract

Abstract: Present study developed a new method for the sensitive determination of pyrethroid insecticides with solid phase extraction in combination with high performance liquid chromatography and UV detector. SiO2 microspheres, a new SiO2 based material, was investigated for the enrichment ability and applicability as the solid phase extraction sorbent. Four pyrethroid pesticides such as fenpropathrin, cyhalothrin, fenvalevate and biphenthrin were used as the target analytes. Parameters that maybe influence the extraction efficiency such as the eluent type and its volume, sample flow rate, sample pH, and the sample volume were optimized in detail, and the optimal conditions were as followed: sample volume, 100mL; concentration of methanol, 30%; acetone volume, 5mL; sample flow rate, 4.2mLmin−1; sample pH, 7. The experimental results indicated that there was good linearity in the concentration range of 0.1–50μgL−1 except biphenthrin in the range of 0.05–25μgL−1. The detection limits for fenpropathrin, cyhalothrin, fenvalevate and biphenthrin were in the range of 0.02–0.08μgL−1. The intra-day and day to day precisions (RSDs, n =6) were in the ranges of 2.6–4.4% and 5.3–7.2%, respectively. The method was validated with five real environmental water samples, and all these results proved that proposed method could be used as a good alternative for the routine analysis for such pollutants in environmental samples. [Copyright &y& Elsevier]

Published
2010
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results