Online LCMS

In the case of AAs, thermospray ionization has been displaced by the milder techniques of electrospray (ES) and atmospheric pressure chemical ionization (APCI), converting analyte molecules without fragmentation into ions. The analyte should contain the AAs in a stable form: either in the free condition or in the form of stable derivatives, such as phenyl-thiohydantoins (PTH) or PTCs. Significantly reduced flow rates are essential (100-300 nL min~J) for stable ES and APCI operation. In automated Edman micro-sequencing, the ES-MS of PTH derivatives. The pro-tonated molecules were measured with a linear response in the 50-1000 fmol level.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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