Two-dimensional chromatography is a type of paper chromatography that includes utilizing two solvents and rotating the paper 90 degrees in between. This is useful for distinguishing complex combinations of comparable polarity chemicals, such as amino acids. There are three parts to the setup. Due to...
Other types of chromatography include supercritical fluid, countercurrent, and electrochromatography. When the sample is present as a solution, its components are indicated as solutes. Sample dissolution and/or preliminary modifications are frequently necessary to have the analytes amenable for a ...
the ratio of the times spent in the moving and stationary regions is equal to the ratio of its concentrations in these regions, known as thepartition coefficient. (The termadsorption isothermis often used when a solid phase is involved.) A mixture of solutes is introduced into the system in...
Because of its advantages of short analytical time, less organic solvent consumption, and easy separation of adsorbents, MSPE has attracted much attention. The key to MSPE is the preparation of highly selective magnetic adsorbents. Covalent organic frameworks have the advantages of large surface area,...
KIT protein expression and mutational status of KIT gene in pituitary adenomas KIT protein expression and mutational status of KIT gene in different types of tumours have been intensively studied since Imatinib Mesylate, KIT/PDGFRA ty... O Casar-Borota,SL Fougner,J Bollerslev,... - 《Virchows Ar...
based in the Pythagoras theorem, finds the distance between two points considering that this distance is the hypotenuse of a right triangle whose sides are theXandYcoordinates. In practical terms, as shown inFig. 7, the distanced0–1between the origin and the maximum of peak 1 is give...
HPLCis a popular method of analysis for natural products because of its high accuracy, precision and is not differed by the stability or the volatility of the compounds. HPLC combined with diode array detector (HPLC-DAD), mass spectrometer (HPLC-MS) have been successfully utilized for the quali...
Purification of recombinant adeno-associated virus vectors by column chromatography and its performance in vivo. Hum Gene Ther. 2000; 11 :2079–2091. doi:... G Gao,G Qu,MS Burnham,... - 《Human Gene Therapy》 被引量: 373发表: 2000年 A method for the preparation of highly purified adeno...
2-Acetyl-1-pyrroline (2-AP) has been identified as the characteristic aroma component of fragrant rice, and its concentration determines the quality and price of the rice. However, obtaining accurate assay results with modern analytical instruments remains a major challenge. The two reasons for thi...
Synthesis of the bifuncttonal dinucleotide AMP-ATP and its application in general ligand affinity chromatography A new AMP derivative substituted with spacer arms both at position N6 and C8 of the adenine moiety was synthesized and immobilized to Sepharose. To the imm... CY Lee,LK Mosbach - 《...