Chromatographic methods

Part 1 book "Chromatographic methods" includes contents: Introduction, theoretical considerations, planar chromatography, liquid phase chromatography on open columns, gas chromatography.

269p dianmotminh01 14-05-2024 4 0   Download

Part 2 book "Chromatographic methods" includes contents: High performance liquid chromatography, chromatography and spectroscopy techniques, processing chromatographic data, model or practical experiments in chromatographic techniques, illustrative problems in chromatography.

302p dianmotminh01 14-05-2024 3 0   Download

Part 1 book "Chromatography and separation science" includes contents: Relating chromatography to separations, simple separation methods, equilibrium processes in separations, the molecular basis of separation, masstransport and separation, chromatographic methods.

113p dianmotminh01 14-05-2024 2 0   Download

This paper focuses on optimizing the chromatographic instrumental operating parameters and the solid phase extraction conditions using HLB cartridges. Results from the method validation showed that the method has sub ng/L LOQs (0.10-0.60 ng/L), quantitative recoveries at the concentrations near the LOQs (74.4-122.8%) and high repeatability with acceptable %RSD (15.6-38.3%).

6p dianmotminh02 03-05-2024 2 1   Download

Ebook "Russian contributions to analytical chemistry" offers a unique perspective and novel information on the significant contributions of Russian scientists to analytical chemistry and chemical analysis. Written by the Editor-in-Chief of the Journal of Analytical Chemistry, it discusses various examples of new methods and approaches originating in Russia, such as chromatography, electrothermal atomic absorption spectrometry, Kumakhov X-ray optics, the Spolský effect in fluorescent analysis and important innovations in mass spectrometry, which are already widely used.

165p tracanhphuonghoa1007 22-04-2024 6 3   Download

Ebook "Dairy chemistry and biochemistry (Second edition)" is the most comprehensive introductory text on the chemistry and biochemistry of milk. It provides a comprehensive description of the principal constituents of milk (water, lipids, proteins, lactose, salts, vitamins, indigenous enzymes) and of the chemical aspects of cheese and fermented milks and of various dairy processing operations.

598p tudohanhtau1006 29-03-2024 2 1   Download

Ebook "Multiscale molecular methods in applied chemistry" cover applied topics such as hierarchically structured materials, molecular reaction dynamics, chemical catalysis, thermodynamics of aggregated phases, molecular self-assembly, chromatography, nanoscale electrowetting, polyelectrolytes, charged colloids and macromolecules.

333p coduathanh1122 27-03-2024 4 1   Download

Lázlo Zechmeister was one of the pioneers in chromatology. He recognized the potential of the chromatographic method and made extensive use of it for his research about natural products. In 1938 he founded the book series "Progress in the Chemistry of Organic Natural Products" which includes review articles on contemporary research by masters in their fields of expertise. This text casts light on his life and his pioneering role in chromatography and provides more detailed insight on the book series.

64p coduathanh1122 27-03-2024 7 1   Download

Ebook "Modified cyclodextrins for chiral separation" offers a review of the latest advances in developing modified cyclodextrins as chiral selectors for various chromatographic and electromigration techniques. Over the years, many descriptions of chiral separation have appeared in academic journals and books, but most of them have been devoted to either the development of analytical methods and protocols or the summary of different chiral selectors, including cyclodextrins for chiral separation applications.

265p coduathanh1122 27-03-2024 2 1   Download

Ebook "Characterization and authentication of olive and other vegetable oils: New analytical methods" presents new methods for the characterization of vegetable oils, with focus in olive oil, according to geographical and botanical origin, genetic variety and other issues influencing product quality. A wide variety of analytical techniques have been employed, such as various chromatographic techniques (different gas and liquid chromatography methods), an electronic nose, infrared spectroscopy and expert-panel evaluation.

229p coduathanh1122 27-03-2024 6 1   Download

Part 2 book "Chromatography - The most versatile method of chemical analysis" by Leonardo de Azevedo Calderon includes contents: Chromatographic analysis of nitrogen utilization and transport in arbuscular mycorrhizal fungal symbiosis; instrumental analysis of tetrodotoxin; chromatography as the major tool in the identification and the structure function relationship study of amylolytic enzymes from saccharomycopsis fibuligera R64; isolation and purification of sperm immobilizing agglutinating factors from bacteria and their corresponding receptors from human spermatozoa,...

198p muasambanhan09 16-03-2024 5 1   Download

Ebook "Advanced separation techniques for polyolefins" ncludes detailed information on experimental protocols and procedures, addressing the experimental background of different polyolefin fractionation techniques in great detail. The book summarizes important applications in all major fractionation methods with emphasis on multidimensional analytical approaches.

189p nhanphanguyet 28-01-2024 5 2   Download

Ebook "Green chromatographic techniques: Separation and purification of organic and inorganic analytes" presents a unified outlook on counter-current, ion size exclusion, supercritical fluids, high-performance thin layers, and gas and size exclusion chromatographic techniques used for the separation and purification of organic and inorganic analytes. It also describes a number of green techniques, green sample preparation methods and optimization of solvent consumption in the chromatographic analysis of organic and inorganic analytes.

220p nhanphanguyet 28-01-2024 3 2   Download

o explore potential biomarkers of the Duliang herbal formula (DHF). Methods: The DHF consisting of a radix of A.dahurica and a rhizome of L. chuanxiong was investigated the pharmacological mechanism for migraine treatment via a network pharmacology approach using published databases and software.

11p vijeff 27-11-2023 3 2   Download

The study "Quantification of vildagliptin in tablets using high liquid-performance chromatography" aimed to establish a fast, simple and economical determination procedure for vildagliptin content in tablets by reverse phase high-performance liquid chromatography (Rp-HPLC). Research method: Chromatographic conditions affecting vildagliptin analysis, such as solvent system, sample processing and optimization of chromatographic conditions, and mobile phase ratio... were investigated.

8p giangnhanly 02-10-2023 6 2   Download

Using various chromatographic methods, five compounds, including three flavone C-glycosides: i) Isoviolanthin; ii) Isoorientin; iii) Isovitexin; iv) Two megastigmanes excoecarioside A; and v) Corchoionoside C were isolated from the leaves of Tinospora sinensis (Lour.) Merr. Their structures were identified based on spectroscopic methods and comparisons with those reported in the literature.

7p viberkshire 09-08-2023 7 2   Download

In this paper, the isolation and structural elucidation of three compounds: albifolione (1), zeorin (2), and atranorin (3) from the lichen P. cristiferum are reported. Their structures were elucidated from spectroscopic data and comparison with literature data.

6p vinebula 02-06-2023 6 2   Download

Genus Pseuderanthemum (Acanthaceae) has 10 species in Vietnam. Pseuderanthemum genus is attracting the attention of many research groups in pharmacology and chemistry. One of these species is Pseuderanthemum carruthersii (Seem.) Guill. var. atropurpureum (Bull.) Fosb. used in traditional remedies to heal the wounds due to its anti–inflammatory activity.

4p vidoctorstrange 06-05-2023 3 1   Download

"Chromatographic fingerprint analysis of herbal medicines: Thin-layer and high performance liquid chromatography of Chinese drugs (Vol.5)" of this manual provides an overview of the analytical investigation of numerous additional Chinese herbal drugs that are commonly used in Traditional Chinese Medicine (TCM). It illustrates the detailed chromatographic analysis of the main compounds with colored TLC photographs and HPLC peak profiles, and also discusses the bioactive properties, pharmacological and biological activity as well as the therapeutic applications of all single herbal drugs.

106p damtuyetha 16-02-2023 7 1   Download

In this study, we determined the in vitro inhibitory effects of metal ions such as Cu2+, Cd2+, Ag+, and Co2+ on GST enzyme activity. For this aim, GST was purified from C. tarichi Pallas liver with 37.36% yield and 29.304 EU/mg specific activity using the chromatographic method. The Vmax values of liver GST were determined for CDNB and GSH to be 1.245 and 0.562 EU/mL, respectively, and the Km values were found 0.89 and 0.06 mM, respectively, using the Lineweaver–Burk plot.

8p lyhuyenthu 31-01-2023 3 2   Download