Stephanie Amaya

home / authors / stephanie-amaya-0

Articles

i3-805464-1408547073269.gif

Direct Analysis Serum Lipidomics Using High Performance Time of Flight Mass Spectrometry — High Resolution, Accurate Mass, and Zucker Rats

Kevin Siek;Jeff Patrick;Stephanie Amaya;LECO Corporation;Joe Binkley
February 1st 2013

Polar lipids and other metabolites extracted from plasma from lean, diabetic, and obese Zucker rats were analyzed by flow injection using high resolution time of flight mass spectrometry. Metabolites were confidently identified and differences in the metabolite profiles determined.

i8_t-765883-1408606466526.jpg

High-Throughput Screening of Abused Steroids in Urine Using Direct TOF-MS and LC–High-Resolution TOF-MS with Comprehensive Ion Fragmentation

Kevin Siek;Jeffrey S. Patrick;Erica A. Guice;Stephanie Amaya;Joe Binkley
March 1st 2012

A proof-of-concept application for detecting abused steroids in urine samples collected from an antidoping surveillance program

Latest Updated Articles

Your Lab Deserves a Technology Upgrade
Published: March 14th 2025 | Updated: March 28th 2025
Your Lab Deserves a Technology Upgrade
Analyzing Organic Acids in Fruit-Based Kombucha Analogues Using HPLC
Published: November 15th 2024 | Updated: November 19th 2024
Analyzing Organic Acids in Fruit-Based Kombucha Analogues Using HPLC
LC-HRMS Technology Used to Track Chemical Migration in Reusable Plastic Bottles
Published: November 18th 2024 | Updated: November 19th 2024
LC-HRMS Technology Used to Track Chemical Migration in Reusable Plastic Bottles
Technology Trends in Separation Science: Data Handling
Published: July 3rd 2024 | Updated: July 8th 2024
Technology Trends in Separation Science: Data Handling
Pipette, liquid and test tube in laboratory for science experiment, chemical analysis and sample preparation. Equipment, closeup and dropper for medical research, biochemistry and solution mixing. | Image Credit: © CoetzeeRising/peopleimages.com
Published: May 13th 2025 | Updated: May 15th 2025
Sample Preparation of Drug Substances and Products in Regulated Testing: A Primer
The laboratory scientist prepares samples for download to High-performance Liquid Chromatograph Mass Spectrometr. | Image Credit: © Sodel Vladyslav
Published: May 13th 2025 | Updated: May 15th 2025
Reversed-Phases for LC Deliberately Doped with Positive Charge: Tips and Tricks for Effective Use