Works by Qiufen Hu

Results: 34

Electrochemical Behavior of Caffeic Acid Assayed with Gold Nanoparticles/Graphene Nanosheets Modified Glassy Carbon Electrode.

Published in:

Electroanalysis, 2013, v. 25, n. 5, p. 1230, doi. 10.1002/elan.201200587

By:

Zhang, Yanli;
Liu, Yanpei;
He, Jiemei;
Pang, Pengfei;
Gao, Yuntao;
Hu, Qiufen

Publication type:

Article

Simultaneous determination of vanadium, niobium and tantalum by high-performance liquid chromatography equipped with on-line enrichment using 2-[2-(5-bromoquinolinylazo)]-5-diethylaminophenol as pre-column derivatization reagent.

Published in:

Microchimica Acta, 2007, v. 158, n. 1/2, p. 95, doi. 10.1007/s00604-006-0667-x

By:

Li, Ganpeng;
Wei, Qunyan;
Hu, Qiufen;
Huang, Zhangjie;
Yang, Guangyu

Publication type:

Article

Study of Solid Phase Extraction Prior to Spectrophotometric Determination of Platinum with N-(3,5-Dimethylphenyl)-N′-(4-Aminobenzenesulfonate)-Thiourea.

Published in:

Microchimica Acta, 2006, v. 153, n. 3/4, p. 187, doi. 10.1007/s00604-005-0467-8

By:

Zhang Xin;
Zhou Yuanqing;
Zhangjie Huang;
Qiufen Hu;
Jing Chen;
Guangyu Yang

Publication type:

Article

Solid Phase Extraction and Spectrophotometric Determination of Mercury in Tobacco and Tobacco Additives with p-Sulfobenzylidenerhodanine as Chromogenic Reagent.

Published in:

Microchimica Acta, 2004, v. 146, n. 3/4, p. 297, doi. 10.1007/s00604-004-0226-2

By:

Yunhuai Zhang;
Guanyu Yang;
Qiufen Hu;
Yin Jiayuan;
Zhong Li

Publication type:

Article

Solid Phase Extraction and Spectrophotometric Determination of Silver with 2-(2-Quinolylazo)-5-diethylaminoaniline as Chromogenic Reagent.

Published in:

Microchimica Acta, 2003, v. 141, n. 3/4, p. 191, doi. 10.1007/s00604-002-0937-1

By:

Qiufen Hu;
Guangyu Yang;
Zhangjie Huang;
Jiayuan Yin

Publication type:

Article

Butyrolactones derivatives from the fermentation products of a plant entophytic fungus Penicillium oxalicum.

Published in:

Natural Product Research, 2015, v. 29, n. 20, p. 1914, doi. 10.1080/14786419.2015.1013473

By:

Yuan, Lin;
Huang, Wenzhong;
Zhou, Kun;
Wang, Yuede;
Dong, Wei;
Du, Gang;
Gao, Xuemei;
Ma, Yinhai;
Hu, Qiufen

Publication type:

Article

Isochromenes from the Nicotiana tabacum-Derived Endophytic Fungus Aspergillus versicolor and Their Bioactivities.

Published in:

Chemistry of Natural Compounds, 2023, v. 59, n. 1, p. 41, doi. 10.1007/s10600-023-03913-z

By:

Liu, Hua-Yin;
Yang, Feng-Xian;
Dai, Jia-Meng;
Liang, Meng-Jie;
Xiong, Wen;
Mi, Qi-Li;
Li, Xue-Mei;
Wang, Kai;
Deng, Liang;
Hu, Qiufen;
Zhang, Jian-Duo

Publication type:

Article

Butyrolactones from the Fermentation Products of the Endophytic Fungus Aspergillus versicolor.

Published in:

Chemistry of Natural Compounds, 2016, v. 52, n. 4, p. 591, doi. 10.1007/s10600-016-1719-z

By:

Zhou, Kun;
Zhu, Long;
Wang, Xinlin;
Zhang, Tiandong;
Wang, Yuede;
Dong, Wei;
Ji, Bingkun;
Yang, Haiying;
Du, Gang;
Hu, Qiufen;
Zhou, Min

Publication type:

Article

Dihydroxanthenones from the Fermentation Product of the Endophytic Fungus Gliomastix murorum.

Published in:

Chemistry of Natural Compounds, 2016, v. 52, n. 4, p. 620, doi. 10.1007/s10600-016-1724-2

By:

Dong, Wei;
Liu, Chunbo;
Shen, Qinpeng;
Zhang, Tao;
Wang, Yuede;
Zhou, Kun;
Ji, Bingkun;
Yang, Haiying;
Du, Gang;
Hu, Qiufen;
Zhou, Min

Publication type:

Article

Chalcones from Desmodium podocarpum and Their Anti-Tobacco Mosaic Virus Activity.

Published in:

Chemistry of Natural Compounds, 2016, v. 52, n. 3, p. 409, doi. 10.1007/s10600-016-1660-1

By:

Ye, Yanqing;
Dong, Wei;
Liu, Chunbo;
Lei, Ping;
Shen, Qinpeng;
Yang, Juanxia;
Wang, Yuede;
Zhou, Kun;
Ji, Bingkun;
Gao, Xuemei;
Zhou, Min;
Hu, Qiufen

Publication type:

Article

Anti-Tobacco Mosaic Virus Isocoumarins from the Leaves of Nicotiana tabacum.

Published in:

Chemistry of Natural Compounds, 2016, v. 52, n. 2, p. 218, doi. 10.1007/s10600-016-1598-3

By:

Wang, Yuede;
Wang, Xinlin;
Zhu, Long;
Zhang, Tiandong;
Zhou, Kun;
Dong, Wei;
Hu, Wei-Yao;
Li, Yinke;
Yang, Guangyu;
Min, Zhou;
Hu, Qiufen

Publication type:

Article

8- O-4′-Neolignans from the Stem Bark of Illicium difengpi and their ANTI-HIV-1 Activities.

Published in:

Chemistry of Natural Compounds, 2016, v. 52, n. 1, p. 43, doi. 10.1007/s10600-016-1543-5

By:

Yang, Yuchun;
Qin, Ying;
Meng, Yanlin;
Xia, Congfang;
Gao, Xuemei;
Hu, Qiufen

Publication type:

Article

Two New Flavones from Hypericum chinense and Their Anti-Tobacco Mosaic Virus Activity.

Published in:

Chemistry of Natural Compounds, 2015, v. 51, n. 5, p. 840, doi. 10.1007/s10600-015-1429-y

By:

Zhou, Bin;
Li, Yinke;
Wu, Xianxue;
Li, Ming;
Ye, Yanqing;
Gao, Xuemei;
Hu, Qiufen

Publication type:

Article

Xanthones from the Fermentation Products of the Endophytic Fungus of Phomopsis amygdali.

Published in:

Chemistry of Natural Compounds, 2015, v. 51, n. 3, p. 456, doi. 10.1007/s10600-015-1314-8

By:

Hu, Qiufen;
Yang, Yuchun;
Yang, Shuai;
Cao, Hongyun;
Chunyang, Meng;
Yang, Haiyin;
Gao, Xuemei;
Du, Gang

Publication type:

Article

Isolation of Xanthones from the Fermentation Products of the Endophytic Fungus of Phomopsis amygdali.

Published in:

Chemistry of Natural Compounds, 2015, v. 51, n. 3, p. 460, doi. 10.1007/s10600-015-1315-7

By:

Yuan, Lin;
Huang, Wenzhong;
Du, Gang;
Gao, Xuemei;
Yang, Haiying;
Hu, Qiufen;
Ma, Yinhai

Publication type:

Article

New Flavones from Garcinia bracteata and Their Biological Activities.

Published in:

Chemistry of Natural Compounds, 2014, v. 50, n. 6, p. 985, doi. 10.1007/s10600-014-1142-2

By:

Hu, Qiufen;
Niu, Deyun;
Wang, Sujuan;
Qin, Yunhua;
Yang, Zongyan;
Zhao, Guoli;
Yang, Zhongxiu;
Gao, Xuemei;
Chen, Zhangyu

Publication type:

Article

Flavonoids from Garcinia paucinervis and their Biological Activities.

Published in:

Chemistry of Natural Compounds, 2014, v. 50, n. 6, p. 994, doi. 10.1007/s10600-014-1144-0

By:

Hu, Qiufen;
Meng, Yanlin;
Yao, Jianhua;
Qin, Yunhua;
Yang, Zongyan;
Zhao, Guoli;
Yang, Zhongxiu;
Gao, Xuemei;
Li, Tianfei

Publication type:

Article

Two New Phenylpropanoids from the Leaves of Oriental Tobacco and their Cytotoxicity.

Published in:

Chemistry of Natural Compounds, 2014, v. 49, n. 6, p. 1028, doi. 10.1007/s10600-014-0815-1

By:

Leng, Hongqiong;
Chen, Jingxiong;
Hang, Yi;
Duan, Yuanxing;
Yang, Guangyu;
Chen, Yongkuan;
Guo, Yadong;
Hu, Qiufen;
Mingming, Miao

Publication type:

Article

Phenolic compounds from Clinopodium urticifolium.

Published in:

Chemistry of Natural Compounds, 2012, v. 48, n. 2, p. 198, doi. 10.1007/s10600-012-0203-7

By:

Hu, Qiufen;
Mu, Huaixue;
Huang, Haitao;
Lv, Huaying;
Li, Shuli;
Yang, Guangyu

Publication type:

Article

Simultaneous Determination of Silver, Nickel, Lead, Cadmium, and Mercury by On-Line Column Enrichment, Followed by Reversed Phase High Performance Liquid Chromatography.

Published in:

Journal of Liquid Chromatography & Related Technologies, 2004, v. 27, n. 3, p. 451, doi. 10.1081/JLC-120027618

By:

Yang, Guangyu;
Dong, Xuechang;
Dai, Yun;
Hu, Qiufen;
Yin, Giayuan

Publication type:

Article

Solid phase extraction and spectrophotometric determination of palladium with 2-(2-quinolylazo)-5-diethylaminobenzoic acid.

Published in:

Journal of the Serbian Chemical Society, 2006, v. 71, n. 7, p. 821, doi. 10.2298/JSC0607821Y

By:

Weizu Yang;
Qiufen Hu;
Zhangjie Huang;
Jiayuan Yin;
Gang Xie;
Jing Chen

Publication type:

Article

Flame atomic absorption spectrometric determination of Cu and Ni in tobacco samples after Preconcentration using ammonium pyrrolidine dithiocarbamate modified magnetic nanoparticles.

Published in:

International Journal of Environmental Analytical Chemistry, 2015, v. 95, n. 15, p. 1435, doi. 10.1080/03067319.2015.1100726

By:

Meng, Dongling;
Ju, Shuangqiao;
Hu, Qiufen;
Li, Xiaolan

Publication type:

Article

Determination of copper, nickel, cobalt, silver, lead, cadmium, and mercury ions in water by solid-phase extraction and the RP-HPLC with UV-Vis detection.

Published in:

Analytical & Bioanalytical Chemistry, 2003, v. 375, n. 6, p. 831, doi. 10.1007/s00216-003-1828-y

By:

Qiufen Hu;
Guangyu Yang;
Yiyun Zhao;
Jiayuan Yin

Publication type:

Article

Spectrophotometric determination of silver with 2-(2-quinolylazo)-5-diethylaminophenol as chromogenic reagent.

Published in:

Analytical & Bioanalytical Chemistry, 2002, v. 374, n. 7/8, p. 1325, doi. 10.1007/s00216-002-1639-6

By:

Yang, Guangyu;
Hu, Qiufen;
Yang, Jihong;
Yin, Jiayuan

Publication type:

Article

Determination of Heavy Metal Ions in Tobacco and Tobacco Additives.

Published in:

South African Journal of Chemistry, 2006, v. 59, p. 17

By:

Weizhu Yang;
Guangyu Yang;
Qiufen Hu;
Jiayuan Yinc;
Gang Xie

Publication type:

Article

Study on Colour Reaction of Vanadium(V) with 2-(2-Quinolylazo)-5-Diethylaminophenol and Its Application.

Published in:

South African Journal of Chemistry, 2004, v. 57, p. 15

By:

Qiufen Hu;
Xianghua Wu;
Guangyu Yang;
Zhangjie Huang;
Jiayuan Yin

Publication type:

Article

Determination of Lead, Cadmium, and Mercury by On-Line Enrichment Followed by RP-HPLC.

Published in:

Journal of Analytical Chemistry, 2003, v. 58, n. 11, p. 1054, doi. 10.1023/A:1027381205576

By:

Wang, Liang;
Hu, Qiufen;
Guangyu, Yang;
Yin, Jiayuan;
Yuan, Zhuobin

Publication type:

Article

Simultaneous Determination of Palladium, Platinum and Rhodium by On‐Line Column Enrichment and a Rapid Column High Performance Liquid Chromatography with 2‐Carboxyl‐1‐Naphthalthiorhodamine as Precolumn Derivatization Reagent.

Published in:

Analytical Letters, 2005, v. 38, n. 14, p. 2463, doi. 10.1080/00032710500318247

By:

Chen, Zhangyu;
Hu, Qiufen;
Jie Huang, Zhang;
Chen, Jing;
Yang, Guangyu;
Su, Qingde

Publication type:

Article

SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF COBALT WITH 2-(2-QUINOLINYLAZO)-5-DIMETHYLAMINOBENZOIC ACID AS CHROMOGENIC REAGENT.

Published in:

Analytical Letters, 2002, v. 35, n. 10, p. 1735, doi. 10.1081/AL-120013052

By:

Yang, Guangyu;
Dong, Xuechang;
Hu, Qiufen;
Yin, Jiayuan

Publication type:

Article

Two New 4-Hydroxyisoflavanes from the Root of Codonopsis cordifolioidea and Their Anti-virus Activities.

Published in:

Journal of the Chinese Chemical Society, 2012, v. 59, n. 4, p. 540, doi. 10.1002/jccs.201100525

By:

Gao, Xuemei;
Mu, Huaixue;
Li, Xuesen;
Yang, Guangyu;
Li, Ganpeng;
Hu, Qiufen

Publication type:

Article

Application of magnetic nanoparticles coated with sodium dodecyl sulfate and modified with 2-(5-bromo-2-pyridylazo)-5-diethyl aminophenol as a novel adsorbent for dispersive-magnetic solid-phase extraction and determination of palladium in soil samples.

Published in:

Environmental Science & Pollution Research, 2018, v. 25, n. 9, p. 8340, doi. 10.1007/s11356-017-1126-4

By:

Wang, Meng;
Wu, Lan;
Hu, Qiufen;
Yang, Yaling

Publication type:

Article

Study on Color Reaction of 2--(2-Quinolylazo)-5-Dimethylaminoaniline with Palladium and Its Application.

Published in:

Turkish Journal of Chemistry, 2005, v. 29, n. 2, p. 135

By:

Yunsen Si;
Qiufen Hu;
Zhangjie Huang;
Guangyu Yang;
Jiayuan Yin

Publication type:

Article

Study on the Solid Phase Extraction and Spectrophotometric Determination of Cobalt with 2-(2-Quinolylazo)-5-Diethylaminoaniline.

Published in:

Turkish Journal of Chemistry, 2004, v. 28, n. 5, p. 611

By:

Qiufen Hu;
Guangyu Yang;
Xuechang Dong;
Jiayuan Yin

Publication type:

Article

Overexpression of Global Regulator LaeA Induced Secondary Metabolite Production in Aspergillus versicolor 0312.

Published in:

Records of Natural Products, 2020, v. 14, n. 6, p. 387, doi. 10.25135/rnp.183.20.03.1593

By:

Ting He;
Yudan Wang;
Lianqiong Du;
Fangru Li;
Qiufen Hu;
Guiguang Cheng;
Weiguang Wang

Publication type:

Article