Polyphenols In Tobacco Samples By HPLC Column
The determination of 10 plant polyphenols in tobacco samples by solid phase extraction and high-performance liquid chromatography as below:
Plant polyphenols are important substances in tobacco. The content of polyphenols in tobacco has an important influence on tobacco quality. Therefore, it is of great significance to study the plant polyphenols in tobacco and its products. The determination methods of tobacco polyphenols mainly include spectrophotometry, gas chromatography, and liquid chromatography. The photometric method has poor accuracy and can only approximately determine the total amount.
Gas chromatography requires complex derivatization; The traditional liquid chromatography requires the sample to be decreased with the organic solvent, which is difficult to operate and will cause polyphenol loss. In recent years, solid phase extraction (SPE) has been widely used in analytical chemistry.
The SPE Cartridge C18 was used for pre-separation and degreasing, and HPLC Column(3. 9 mm x 150 mm) was used for separation and determination of polyphenols in tobacco. The main polyphenols were characterized by UV spectrogram. The method can simultaneously determine 10 kinds of polyphenols in tobacco and be used for tobacco sample analysis.
Contact : Bruce Lu, +86 29 89284429
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of Polyphenols In Tobacco Samples By HPLC Column Search in a category : Everything else / Bulk Search in a category : samples, hplc, polyphenols, tobacco, column |
Thursday, January 17, 2013
Quantity : 18MT - Price : 70,00 €
Below is the Quotation and our specification . Wood Pellet... ... ... ... ... ... ... ... ..95Euros Hardwood Charcoal,... ... ... ... ... ... . 100Euros Sunflower Husk Pellet, ... ... ... ... ..80Euros Firewood, ... ... ... ... ... ... ... ... ... 75Euros Briquettes... ... ...
NCF COMPANY
- 06070 - IZMIR
- 00905428841676
Friday, April 03, 2015
Price : compétitif
Best canned sardines and mackerel from Morocco : high quality and good prices -High international quality standards. Our products are highly appreciated in the market ( regular orders after the first order ). - specifications : Box 125 gr Vegetable oil /Tomato oil/ chili oil...
maroc.pelagic
- 80000 - Agadir
- +212668440689
- +212 6 73 62 27 70
Sunday, April 28, 2013
Quantity : mt - Price : $1200
High quality Pine nuts health,crispy&low-fat Good for children,adults and old people Model Number: 550,600,650,700,750/100g Package: 12.5 kgs net in vacuum bags x 2 per carton or 10 kgs net in plastic bag per carton or as requests Samples are availiable Specification: Purity >99...
adfarmersplc
- 237 - Douala
- +23 7 71 92 12 01
- +23 7 33 21 54 28




