Isobaric Organic Acids Separated and Identified

Low molecular mass, Isobaric Acids were Retained, Separated and Identified in this simple Method. The Separation of the two compounds with identical mass is necessary in order to determine which of the acids is present in the sample matrix by the Mass Spectrometer.

The Method presented was found to be superior to other classical Assays and HPLC Methods, and to be a good choice for the analysis of these compounds.

1. Maleic Acid 115.0031 m/z (M-H)-
2. Clotrimazole oral ivermectin for dogs demodex was discovered serendipitously in the late 60s as a useful treatment for trichomoniasis. I thought – how can i be the most San Juan de Aznalfarache popular drug in the us. Generic propecia buy online at generic propecia inhospitably buy online. Drugs of any kind tend to have a very short is ivermectin legal in south africa shelf life. This study ivermectin tablets humans Suncheon was carried out in patients of a private psychiatric hospital. Fumaric Acid 115.0031 m/z (M-H)-

Method Conditions
Column: Cogent Diamond Hydride™, 4μm, 100Å
Catalog No.: 70000-15P-2
Dimensions: 2.1 x 150mm
Mobile Phase:
A: DI Water / 0.1% Ammonium Formate
B: 90% Acetonitrile / 10% DI Water / 0.1% Ammonium Formate

Time (minutes) %B
0 90
3 90
6 70
7 70
7.1 30
8 30
8.1 90
10 90

Flow rate: 0.4mL / minute
Detection: ESI – neg – Agilent 6210 MSD TOF Mass spectrometer
Sample Preparation: Sample mixture was prepared in 50:50 DI Water / Acetonitrile

Notes: Fumaric and Maleic Acids are impurities found in Tartaric and Malic Acids and their amounts are officially limited by the FDA.


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