Application Notes: LC
Analyzing Oligosaccharides Using Shodex HILIC Mode
This application shows how Shodex HILICpak columns can separate high-molecular weight oligosaccharides that proved difficult with preexisting HILIC columns.
Analyzing Rare Sugars Using Shodex HILICpak
This application shows howShodex HILICpak columns can separate high-molecular weight oligosaccharides that proved difficult with preexisting HILIC columns.
LC-MS Analysis of Low-Molecular Weight Cationic Compounds
This application note shows how using the Shodex HILICpak VC-50 2D column with LC–MS provides highly sensitive analyses of various low molecular weight cationic compounds.
Promoter or Polluter? Separation of Triazines
Triazines in water supplies cause endocrine disruption in reproduction of some animals. See how Hamilton's HPLC columns can separate seven federally approved triazines.
Isoflavones and Mycotoxins in Soy Beans (Feb 2023)
Analyzing crops for beneficial and harmful compounds is an indispensable tool for assessing the viability of various agricultural crops for consumption.
Saccharide Identification in Honey
Honey has medicinal and healing properties, but it often contains refined sugars to extend supply. See how Hamilton's HC-75 column exposed Nevada honey adulteration.
Biologically Active Increasing Length Peptides (Feb 2023)
This application note highlights the assessment of Hamilton PRP-3 HPLC column attributes when analyzing biologically active peptides.
Separating Fat Soluble Vitamin K Congeners
This application note explains how Hamilton Company's PRP-C18 method offers a fast, simple solution for identifying vitamin K congeners.
Determination of Flavonoids in Hemp
This application note describes a method to confirm the seven most common flavonoids found in cannabis using the PRP-1 column.
Quick Analysis of Polycyclic Aromatic Hydrocarbons
The Focus LC® separated PAHs in ~12 and ~15 min, with separate methods on short capillary columns packed with 1.7 µm monomeric and 3.0 diameter polymeric C18 particles.
Intact Protein Analysis by RPLC Using Portable HPLC
The separation of five test proteins in the range of 5.8 to 45 kDa is shown using reversed phase (RP) conditions.
THC Metabolites in Urine (PRP-C18)
The Hamilton PRP-C18 reversed-phase column offers good selectivity and peak shape when detecting the three major components of THC metabolites in urine.
MDA Quantification in Jet Fuel
Real time determination of the presence of MDA in an aviation turbine fuel sample at installation level or in a field environment outside of a laboratory.
Point-of-Care Monitoring for Drugs of Abuse
A point-of-care LC system that is compact, reliable, and easy to use. The Axcend Focus LC is efficient, allowing for informed decisions at the time of need.
Dissolution of Excedrin® with Axcend HPLC
Repeatable analyses of API dissolution. An Extra Strength Excedrin® analgesic tablet was dissolved in a 200 mL solution (97% water; 3% ACN; and <0.1% TFA).
Determination of Hemp-Based and Standard Cannabinoids
Portable HPLC to detect and separate 5 cannabinoids present in 50 mg of a hemp-variant of cannabis flowers and 12 additional cannabinoids present in a Restek standard.
Benzodiazepine Metabolites by Reversed-Phase HPLC
Although the majority of benzodiazepines metabolize to a single compound, oxazepam, other metabolites can be detected by liquid chromatography.
Separation of Basic Drug Compounds
In this study, a generic, 5-min linear gradient was used to separate six basic drug compounds on a short (50 mm) PRP-C18 column.
Raffinose Family of Oligosaccharides by Cation Exchange
The Raffinose Family of Oligosaccharides (RFO) is comprised of low molecular weight non-reducing sugars. Analysis of these compounds is not easily done unless using HC-75.
Pick Your Poison. Isolation of Paclitaxel
Paclitaxel originates from the Pacific Yew tree. The isolation of paclitaxel from its major impurities is shown with the use of Hamilton’s PRP-1 (5 µm) HPLC column.
Separation of Fat Soluble Vitamin K Congeners in Under 6 Min
The fast simple method developed by Hamilton Company using the PRP-C18 column allows for simple, efficient identification of the whole vitamin series (K2, K3, and K4).
Oligonucleotide Purification by Reversed-Phase Ion Pairing
A Hamilton PRP-C18 (5 μm) HPLC column was used for purification of three oligonucleotides. Analysis of a 21-mer, 22-mer, and 23-mer of similar structure was evaluated.
Separation of 12 Nucleosides on Hamilton PRP-1 Column (Dec 2022)
The primary nucleosides encompass a broad array of biological functions associated with RNA, particularly after configuration into multidimensional conformations.
Automated Monoclonal Antibody Subunit Analysis
This application note describes a 2D-LC workflow for Protein A purification of mAbs, followed by online reduction and MS analysis of mAb subunits.
Low pH Stability with HALO LPH-C18
A separation of parabens is performed on a HALO 90 Å LPH-C18 column under low pH (pH 1) and high temperature conditions compared to a standard C18 SPP column.
HALO LPH-C18: Enhanced Stability for Low pH Applications
A low pH compatible, 90 Å, superficially porous particle C18 phase is introduced as an addition to the chromatographer’s toolbox.
Cannabinoid Separations and the Impact of LC Column Selectivity
The natural products of the cannabis plant can number up to 100, but the scientific community is concerned with a smaller portion of around 10 to 20 compounds.
LPH-C18: A C18 Column Alternative
Separation of 18 Cannabinoids Using HALO LPH-C18
A HALO® LPH-C18 column is used to separate a mixture of 18 cannabinoids, showing fast results and high resolution within critical pairs.
Vitamin E(xtraordinary), Isolation of Tocopherols by PRP-1 (Nov 2022)
The fast identification of tocopherols is important for various applications including free radical scavenging for human health and food stuff preservation.