Advanced
Advanced

Browsing by Author Pham, Hung Viet

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 7 of 7
  • document(9).pdf.jpg
  • Article

  • Distribution and accumulation of perfluororinated chemicals (PFCs) in water and sediment in two urban large lakes, Hanoi

    • Authors: Nguyen, Thuy Ngoc; Phan, Dinh Quang; Truong, Thi Kim; Phung, Thi Vi; Pham, Hung Viet; Duong, Hong Anh (2018)

  • The perfluororinated chemicals (PFCs) were determined in 40 surface water samples anf 36 sediment samples which were collected in two large urban lakes of Hanoi that are West lake and Yen So lake in rainy and dry seasons. Concentrations of total analysed PFCs was averaged of 10.78ng/L (8.13 – 13.25 ng/L) in water of West lake and 14.55 ng/L (12.42 – 17.64 ng/L) in water of Yen So lake, respectively. The average amount of PFCs in sediment of West lake was 0.11 ng/g dry sample (0.03-0.26 ng/g dry sediment) and PFCs of Yen So lake was 0.79 ng/g dry sample (0.08-2.01 ng/g dry sediment). The dominant PFCs with short cabon chain of PFC moleculars that were found a range of C4 to C10 f...
  • Inexpensive-and-versatile-measurement-tools-using-purpose-made-capillary-electrophoresis-devices-coupled-with-contactless-conductivity-detection-A-vie.pdf.jpg
  • Article

  • Inexpensive and versatile measurement tools using purpose-made capillary electrophoresis devices coupled with contactless conductivity detection: A view from the case study in Vietnam

    • Authors: Hong Anh, Hong Anh; Nguyen, Thanh Dam; Mai, Thanh Duc; Jorge Saiz; Pham, Hung Viet (2016)

  • In this study, the development of purpose-made capillary electrophoresis (CE) devices with capacitively coupled contactless conductivity detection (C4D) as a simple and inexpensive measurement tool and its applications for water monitoring, food control and pharmaceutical analyses in Vietnam are reviewed. The combination of CE and C4D, both relying on the control of the movements of ions in an electrical field, can be realizable even with a modest financial budget and limited experimental skills and expertise. Different CE-C4D configurations designed and developed for various applications were highlighted. Some perspectives for a wider recognition of its potential in Vietnam and for ...
  • 33.3.14.pdf.jpg
  • Article

  • Language borrowing: theory and reality

    • Authors: Pham, Hung Viet; Ly, Toan Thang (2017)

  • The paper discusses the concept of language borrowing from different viewpoints and considers approaches to that linguistic phenomenon, from traditional to modern ones concerning borrowings at different levels in a language system, including phonetic, lexical and syntactic levels. These offer practical implications to research on the issue of borrowing in the Vietnamese language at present.
  • Atmospheric Environment Volume 37 issue 9-10 2003 [doi 10.1016%2Fs1352-2310%2802%2901009-9] Gregory R Carmichael; Martin Ferm; Narisara Thongboonchoo; Jung- -- Measurements of sulfur dioxide, ozone an.pdf.jpg
  • Article

  • Measurements of sulfur dioxide, ozone and ammonia concentrations in Asia, Africa, and South America using passive samplers

    • Authors: Carmichael, Gregory R.; Ferm, Martin; Thongboonchoo, Narisara; Woo, Jung-Hun; Chan, L.Y.; Murano, Kentaro; Pham, Hung Viet; Mossberg, Carl; Bala, Rajasekhlar; Boonjawat, Jariya; Upatum, Pramote; Mohan, Manju; Adhikary, Sharad P.; Shrestha, Arun B.; Pienaar, J.J.; Brunke, Ernst B.; Chen, Tai; Jie, Tang; Guoan, Ding; Peng, Leong Chow; Dhiharto, Sri; Harjanto, Hery; Jose, Aida M.; Kimani, Wilson; Kirouane, Abdelmalek; Lacaux, Jean-Pierre; Richard, Sandrine; Barturen, Osvaldo; Cerda, Jorge Carrasco; Athayde, Augusto; Tavares, Tania; Cotrina, Jose Silva; Bilici, Erdal (2003)

  • Measurements of gaseous SO2, NH3, and O3 using IVL passive sampler technology were obtained during a pilot measurement program initiated as a key component of the newly established WMO/GAW Urban Research Meteorology and Environment (GURME) project. Monthly measurements were obtained at 50 stations in Asia, Africa, South America, and Europe. The median SO2 concentrations vary from a high of 13 ppb at Linan, China, to <0.03 ppb at four stations. At 30 of 50 regional stations, the observed median concentrations are <1 ppb. Median ammonia concentrations range from 20 ppb at Dhangadi, India, to <1 ppb at nine stations. At 27 of regional stations, the ambient ammonia levels exceed 1 ppb. Th...
  • 01050000334.pdf.jpg
  • Thesis

  • Optimized sequential extraction arsenic in sediment and Application for evaluating mobilization of arsenic from sediment into groundwater

    • Authors: Nguyen, Thi Thu Trang;  Advisor: Pham, Hung Viet (2011)

  • Optimized time of sequential extraction arsenic in sediment, experiments performed in closed systems with five extractants. - Carried out experiment at different time of optimal process : 0.167h; 0.33h; 0.66h; 1h; 2h; 3h; 6h; 12h;18h;24h. Carried out at 6h for extraction and application of extraction with five sediment samples.- Application of extraction process of sediments to find out the relationship between arsenic in sediment and groundwater and the role of releasing arsenic from sediment into groundwater. - Analysis of 19 samples of groundwater and extracted with 5 samples of sediment. Results of extraction: 0.1% As bound with Non-specifically.25% As bound with solubility ...
  • item.jpg
  • -

  • Polycyclic aromatic hydrocarbons (PAHs) in road dust collected from Quang Ninh: Contamination levels and potential sources

    • Authors: Nguyen, Thuy Ngoc; Truong, Thi Kim; Phan, Thi Lan Anh; Duong, Hong Anh; Phung, Thi Vi; Pham, Hung Viet (2021)

  • Hai mươi mẫu bụi đường được thu thập tại thành phố Hạ Long và Cẩm Phả, tỉnh Quảng Ninh để phân tích hàm lượng PAHs. Tổng hàm lượng 16 PAHs (theo danh mục của EPA, Mỹ) tìm thấy trong các mẫu bụi đường tại Hạ Long có giá trị trung bình 399 ng/g (trong khoảng 232 - 593 ng/g) và tại Cẩm Phả là 780 ng/g (297 - 1624 ng/g). Phân bố thành phần các PAHs trong bụi của hai thành phố khá tương đồng, chiếm thành phần chính là các hợp chất Phe (21% ± 13%) > Pyr (12% ± 6%)> Nap~Fluth (11% ± 6%) >BbF (10% ± 8%). Dựa vào giá trị của một số tỷ lệ đặc trưng như: Fluth/(Fluth+Pyr) (trung bình 0,43, trong khoảng 0,29 - 0,60), BaA/(BaA+Chr) (trung bình 0,30, trong khoảng 0,08 - 0,38), IcdP/(IcdP/BghiP)...
  • 1736.pdf.jpg
  • Article

  • Ubiquitous occurrence of sulfonamides in tropical Asian waters

    • Authors: Shimizu, Akiko; Takada, Hideshige; Koike, Tatsuya; Takeshita, Ayako; Saha, Mahua; Rinawati; Nakada, Norihide; Murata, Ayako; Suzuki, Tokuma; Suzuki, Satoru; Nguyen, H. Chiem; Bui, Cach Tuyen; Pham, Hung Viet; Siringan, Maria Auxilia; Kwan, Charita; Zakaria, Mohamad P.; Reungsang, Alissara (2013)

  • Seven sulfonamides, trimethoprim, five macrolides, lincomycin and three tetracyclines were measured in 150 water samples of sewage, livestock and aquaculture wastewater, and river and coastal waters, in five tropical Asian countries. The sum of the concentrations of the target antibiotics in sewage and heavily sewage-impacted waters were at sub- to low-ppb levels. The most abundant antibiotic was sulfamethoxazole (SMX), followed by lincomycin and sulfathiazole. The average concentration of SMX in sewage or heavily sewage-impacted waters was 1720 ng/L in Vietnam (Hanoi, Ho Chi Minh, Can Tho; n=15), 802 ng/L in the Philippines (Manila; n=4), 538 ng/L in India (Kolkata; n=4), 282 ng/L in...

    Readership Map

    ABSTRACTS VIEWS

    44425918

    VIEWS & DOWNLOAD

    26914936

    Content Distribution

Browsing by Author Pham, Hung Viet

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 7 of 7
  • document(9).pdf.jpg
  • Article

  • Distribution and accumulation of perfluororinated chemicals (PFCs) in water and sediment in two urban large lakes, Hanoi

    • Authors: Nguyen, Thuy Ngoc; Phan, Dinh Quang; Truong, Thi Kim; Phung, Thi Vi; Pham, Hung Viet; Duong, Hong Anh (2018)

  • The perfluororinated chemicals (PFCs) were determined in 40 surface water samples anf 36 sediment samples which were collected in two large urban lakes of Hanoi that are West lake and Yen So lake in rainy and dry seasons. Concentrations of total analysed PFCs was averaged of 10.78ng/L (8.13 – 13.25 ng/L) in water of West lake and 14.55 ng/L (12.42 – 17.64 ng/L) in water of Yen So lake, respectively. The average amount of PFCs in sediment of West lake was 0.11 ng/g dry sample (0.03-0.26 ng/g dry sediment) and PFCs of Yen So lake was 0.79 ng/g dry sample (0.08-2.01 ng/g dry sediment). The dominant PFCs with short cabon chain of PFC moleculars that were found a range of C4 to C10 f...
  • Inexpensive-and-versatile-measurement-tools-using-purpose-made-capillary-electrophoresis-devices-coupled-with-contactless-conductivity-detection-A-vie.pdf.jpg
  • Article

  • Inexpensive and versatile measurement tools using purpose-made capillary electrophoresis devices coupled with contactless conductivity detection: A view from the case study in Vietnam

    • Authors: Hong Anh, Hong Anh; Nguyen, Thanh Dam; Mai, Thanh Duc; Jorge Saiz; Pham, Hung Viet (2016)

  • In this study, the development of purpose-made capillary electrophoresis (CE) devices with capacitively coupled contactless conductivity detection (C4D) as a simple and inexpensive measurement tool and its applications for water monitoring, food control and pharmaceutical analyses in Vietnam are reviewed. The combination of CE and C4D, both relying on the control of the movements of ions in an electrical field, can be realizable even with a modest financial budget and limited experimental skills and expertise. Different CE-C4D configurations designed and developed for various applications were highlighted. Some perspectives for a wider recognition of its potential in Vietnam and for ...
  • 33.3.14.pdf.jpg
  • Article

  • Language borrowing: theory and reality

    • Authors: Pham, Hung Viet; Ly, Toan Thang (2017)

  • The paper discusses the concept of language borrowing from different viewpoints and considers approaches to that linguistic phenomenon, from traditional to modern ones concerning borrowings at different levels in a language system, including phonetic, lexical and syntactic levels. These offer practical implications to research on the issue of borrowing in the Vietnamese language at present.
  • Atmospheric Environment Volume 37 issue 9-10 2003 [doi 10.1016%2Fs1352-2310%2802%2901009-9] Gregory R Carmichael; Martin Ferm; Narisara Thongboonchoo; Jung- -- Measurements of sulfur dioxide, ozone an.pdf.jpg
  • Article

  • Measurements of sulfur dioxide, ozone and ammonia concentrations in Asia, Africa, and South America using passive samplers

    • Authors: Carmichael, Gregory R.; Ferm, Martin; Thongboonchoo, Narisara; Woo, Jung-Hun; Chan, L.Y.; Murano, Kentaro; Pham, Hung Viet; Mossberg, Carl; Bala, Rajasekhlar; Boonjawat, Jariya; Upatum, Pramote; Mohan, Manju; Adhikary, Sharad P.; Shrestha, Arun B.; Pienaar, J.J.; Brunke, Ernst B.; Chen, Tai; Jie, Tang; Guoan, Ding; Peng, Leong Chow; Dhiharto, Sri; Harjanto, Hery; Jose, Aida M.; Kimani, Wilson; Kirouane, Abdelmalek; Lacaux, Jean-Pierre; Richard, Sandrine; Barturen, Osvaldo; Cerda, Jorge Carrasco; Athayde, Augusto; Tavares, Tania; Cotrina, Jose Silva; Bilici, Erdal (2003)

  • Measurements of gaseous SO2, NH3, and O3 using IVL passive sampler technology were obtained during a pilot measurement program initiated as a key component of the newly established WMO/GAW Urban Research Meteorology and Environment (GURME) project. Monthly measurements were obtained at 50 stations in Asia, Africa, South America, and Europe. The median SO2 concentrations vary from a high of 13 ppb at Linan, China, to <0.03 ppb at four stations. At 30 of 50 regional stations, the observed median concentrations are <1 ppb. Median ammonia concentrations range from 20 ppb at Dhangadi, India, to <1 ppb at nine stations. At 27 of regional stations, the ambient ammonia levels exceed 1 ppb. Th...
  • 01050000334.pdf.jpg
  • Thesis

  • Optimized sequential extraction arsenic in sediment and Application for evaluating mobilization of arsenic from sediment into groundwater

    • Authors: Nguyen, Thi Thu Trang;  Advisor: Pham, Hung Viet (2011)

  • Optimized time of sequential extraction arsenic in sediment, experiments performed in closed systems with five extractants. - Carried out experiment at different time of optimal process : 0.167h; 0.33h; 0.66h; 1h; 2h; 3h; 6h; 12h;18h;24h. Carried out at 6h for extraction and application of extraction with five sediment samples.- Application of extraction process of sediments to find out the relationship between arsenic in sediment and groundwater and the role of releasing arsenic from sediment into groundwater. - Analysis of 19 samples of groundwater and extracted with 5 samples of sediment. Results of extraction: 0.1% As bound with Non-specifically.25% As bound with solubility ...
  • item.jpg
  • -

  • Polycyclic aromatic hydrocarbons (PAHs) in road dust collected from Quang Ninh: Contamination levels and potential sources

    • Authors: Nguyen, Thuy Ngoc; Truong, Thi Kim; Phan, Thi Lan Anh; Duong, Hong Anh; Phung, Thi Vi; Pham, Hung Viet (2021)

  • Hai mươi mẫu bụi đường được thu thập tại thành phố Hạ Long và Cẩm Phả, tỉnh Quảng Ninh để phân tích hàm lượng PAHs. Tổng hàm lượng 16 PAHs (theo danh mục của EPA, Mỹ) tìm thấy trong các mẫu bụi đường tại Hạ Long có giá trị trung bình 399 ng/g (trong khoảng 232 - 593 ng/g) và tại Cẩm Phả là 780 ng/g (297 - 1624 ng/g). Phân bố thành phần các PAHs trong bụi của hai thành phố khá tương đồng, chiếm thành phần chính là các hợp chất Phe (21% ± 13%) > Pyr (12% ± 6%)> Nap~Fluth (11% ± 6%) >BbF (10% ± 8%). Dựa vào giá trị của một số tỷ lệ đặc trưng như: Fluth/(Fluth+Pyr) (trung bình 0,43, trong khoảng 0,29 - 0,60), BaA/(BaA+Chr) (trung bình 0,30, trong khoảng 0,08 - 0,38), IcdP/(IcdP/BghiP)...
  • 1736.pdf.jpg
  • Article

  • Ubiquitous occurrence of sulfonamides in tropical Asian waters

    • Authors: Shimizu, Akiko; Takada, Hideshige; Koike, Tatsuya; Takeshita, Ayako; Saha, Mahua; Rinawati; Nakada, Norihide; Murata, Ayako; Suzuki, Tokuma; Suzuki, Satoru; Nguyen, H. Chiem; Bui, Cach Tuyen; Pham, Hung Viet; Siringan, Maria Auxilia; Kwan, Charita; Zakaria, Mohamad P.; Reungsang, Alissara (2013)

  • Seven sulfonamides, trimethoprim, five macrolides, lincomycin and three tetracyclines were measured in 150 water samples of sewage, livestock and aquaculture wastewater, and river and coastal waters, in five tropical Asian countries. The sum of the concentrations of the target antibiotics in sewage and heavily sewage-impacted waters were at sub- to low-ppb levels. The most abundant antibiotic was sulfamethoxazole (SMX), followed by lincomycin and sulfathiazole. The average concentration of SMX in sewage or heavily sewage-impacted waters was 1720 ng/L in Vietnam (Hanoi, Ho Chi Minh, Can Tho; n=15), 802 ng/L in the Philippines (Manila; n=4), 538 ng/L in India (Kolkata; n=4), 282 ng/L in...