- About
- Advertise
- Contact Us
- Editorial Staff
- Editorial Advisory Board
- Ethics Policy
- Do Not Sell My Personal Information
- Privacy Policy
- Permissions
- Terms and Conditions
© 2021 MJH Life Sciences™ and Chromatography Online. All rights reserved.
The Application Notebook-09-01-2019
The Application Notebook
Determination of Triphenylmethane Dyes from Aquaculture Samples
September 01, 2019
Food and Beverage
32
9
This application note describes the determination of the triphenylmethane dyes Malachite Green and Crystal Violet and their metabolites from the aquaculture samples brown trout, shrimp, and tuna using dispersive SPE (dSPE) with CHROMABOND QuEChERS mixes for sample clean-up.
Effective Enrichment of Glycopeptides in Drop‑HILIC Approach Using iSPE®-HILIC Material
September 01, 2019
Medical/Biological
32
9
Demonstratation of the glycopeptide enrichment efficiency of iSPE®-HILIC material for glycoproteomics applications using a well characterized glycoprotein standard.
Determination of Pesticides in Coffee with QuEChERS Extraction and Silica Gel SPE Cleanup
September 01, 2019
Food and Beverage
32
9
This application note details an optimized method for the extraction and cleanup of pesticide residues from coffee using a QuEChERS extraction procedure followed by a silica gel SPE cleanup.
Characterization of Metal-Containing Nanoparticles in Tattoo Ink Using Asymmetrical Flow Field-Flow Fractionation Coupled with Multi-Angle Light Scattering and ICP-MS
September 01, 2019
Medical/Biological
32
9
In this study, AF4-MALS-ICP-MS was applied to characterize four commercial tattoo inks: outlining black, purple deep violet, green grasshopper, and blue ice.
Analysis of Fentanyl and Its Analogues in Human Urine by LC–MS/MS
September 01, 2019
Medical/Biological
32
9
In this study, we developed a simple dilute-and‑shoot method that provides a fast 3.5-min analysis of fentanyl and related compounds (norfentanyl, acetyl fentanyl, alfentanil, butyryl fentanyl, carfentanil, remifentanil, and sufentanil) in human urine by LC–MS/MS using a Raptor Biphenyl column.
LC–MS/MS Analysis of Sphingophospholipids Using a Metal-Free Column
September 01, 2019
Medical/Biological
32
9
Sphingolipids are major components forming biological membranes, and they serve as intracellular signalling molecules. It is important to measure the amount of these molecules in biological samples because they have a massive influence on various metabolic diseases such as obesity, diabetes, and Alzheimer’s disease. Recently, an improved method using a YMC-Triart C18 metal-free column was reported by Dr. Gowda et al.
Characterization of PLGA Using SEC-MALS-IV
September 01, 2019
Pharmaceutical/Drug Discovery
32
9
In this application note, two commercially available samples were analyzed in the ASTRA® software by SEC coupled to a multi-angle light scattering (MALS) detector (DAWN®), a refractive index detector (Optilab®), and a differential viscosity detector (ViscoStar®).