Application Notes: LC

Sep 19, 2007
LCGC Europe
By LCGC Editors
Increased Sample Throughput with Luna? HILIC
Sep 02, 2007
The Application Notebook
By LCGC Editors
Sep 02, 2007
The Application Notebook
By LCGC Editors
The ability to remove highly abundant proteins specifically and with high selectivity is increasingly important in proteomic studies, and success in this procedure is leading to an ever-increasing list of lower abundant proteins being identified in biological fluids.
Sep 02, 2007
The Application Notebook
HPLC and LC–MS–MS are efficient tools for analysis of food ingredients. Reversed-phase chromatography is often used to separate either beneficial substances like polyphenols or residual harmful substances. Hydrophilic interaction chromatography however is the method of choice for the separation of very polar compounds. We present methods for simultaneous determination of coenzymes Q10, Q9 and vitamin E and for analysis of sugar alcohols.
Sep 02, 2007
The Application Notebook
By LCGC Editors
Polynuclear aromatic hydrocarbons (PAHs) are common combustion products (i.e., ingredients of smoke). Many are known to be harmful and, therefore, are vigorously monitored in the environment. Scientists seeking ways to improve productivity and throughput can scale down HPLC PAH methods using new technology such as smaller particles in shorter columns.
Sep 02, 2007
The Application Notebook
AC Analytical Controls developed a new chromatographic solution that complies with all ASTM & EN chromatographic test methods listed in biodiesel specifications: the AC all-in-one Biodiesel analyser. Analysis results demonstrate that the AC analyser complies with EN 14103, EN 14105, EN 14106, EN 14110 & ASTM D6584 methods.
Sep 02, 2007
The Application Notebook
By LCGC Editors
Most laboratories employ multiple LC applications to analyse various samples. Traditionally different applications are run on separate HPLC instruments or sequentially on one system. In the latter instance a manual changeover is needed, requiring frequent operator interaction and taking time away from system use.
Sep 02, 2007
The Application Notebook
By LCGC Editors
Very low level detection of mycotoxins in the agriculture products has become increasingly important. Mycotoxins are very resistant fungal metabolites that can remain in foods after processing and, sometimes, even after cooking. They are considered potent carcinogens and can be found in many varieties of foods. Of the mycotoxin class, aflatoxins are considered especially harmful, being both acutely and chronically toxic. Aflatoxin B1 and B2 are some of the most potent hepatocarcinogens known. Along with aflatoxins G1 and G2, even extremely low levels of these aflatoxins in the diet are important public-health concerns. With this in mind, this application note describes a specific, robust HPLC method for the low-ppb detection of aflatoxins B1, B2, G1 and G2 in corn.
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