Christof Lenz

3 Questions 103 Answers 0 Followers

Questions related from Christof Lenz

Can anyone recommend a choice of standard proteins as QC spikes for label-free quantification experiments?

I am looking for standard proteins that are readily commercially available, not too expensive, are readily digested with trypsin, produce some suitable peptides for LC/MS/MS, and can be used as QC...

14 May 2014 3,421 9 View

Is there an LCMS assay (or other method) for quantification of a Trolox antioxidant in body fluids?

I am looking for ways to determine Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-Carboxylic Acid (CAS 53188-07-1)) in tissue/body fluid samples. Is anybody aware of existing published assays?...

15 April 2014 950 2 View

Where to get platinum wire (insets) to modify a nanoSpray source using an Upchruch Mirotee?

I am trying to modify the nanoSpray source on an AB SCIEX TT5600+, to use a regular Upchurch Microtee (e.g. UH-700) instead of the somewhat less robust 1/16-380nm fingertight junction that comes...

09 August 2013 5,700 5 View