Browsing by Author Nguyen, Thi Thu Trang

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  • Authors: Phung, Nhu Hoa; Nguyen, Thi Thu Trang; Nguyen, Tien Tuan Anh; Pham, Van Phong; Nguyen, Van Ky (2016)

  • We have developed two esterification strategies fora challenging coupling between camphoric acid and solanesol to achieve a hybrid natural product - solanesyl camphorate. Both synthetic strategies applied the classic activationmode of carboxylic acid group by anhydride formation to overcome the difficulties caused by steric hindrance and the difference in polarity of two reactants. The first method took advantages of easy prepared camphoric anhydride from camphoric acid, whereas the second one allowed direct esterification via in situanhydride formation. Moreover, no solvent is required in synthetic process. This work would provide greener approaches for syntheses of h...

  • 01050000334.pdf.jpg
  • Thesis


  • 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 ...

Browsing by Author Nguyen, Thi Thu Trang

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 2 to 3 of 3
  • document(38).pdf.jpg
  • Article


  • Authors: Phung, Nhu Hoa; Nguyen, Thi Thu Trang; Nguyen, Tien Tuan Anh; Pham, Van Phong; Nguyen, Van Ky (2016)

  • We have developed two esterification strategies fora challenging coupling between camphoric acid and solanesol to achieve a hybrid natural product - solanesyl camphorate. Both synthetic strategies applied the classic activationmode of carboxylic acid group by anhydride formation to overcome the difficulties caused by steric hindrance and the difference in polarity of two reactants. The first method took advantages of easy prepared camphoric anhydride from camphoric acid, whereas the second one allowed direct esterification via in situanhydride formation. Moreover, no solvent is required in synthetic process. This work would provide greener approaches for syntheses of h...

  • 01050000334.pdf.jpg
  • Thesis


  • 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 ...