Topic profile page for Electrospray.
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Topic "Electrospray" was discussed 0 times on 0 sites in last 3 months
Started 1 month, 3 weeks ago (2009-10-22 17:14:00)
by bstanley
Hi all, There are some molecules that can suppress the analyte signal in mass spectrometer (MS) when using electrospray ionization (ESI) as ionization process. My question is: do amine and ketone/aldehyde suppress analyte signal in electrospray (ESI) if they are present? Thank you. B
Started 1 month, 2 weeks ago (2009-10-25 07:40:00)
by MOTOBALL
You have posted a very generalised question, so I shall give you a very generalized answer... 1. Amines, being very basic, will have a very good MS response (ESI, APCI, CI) and even at a 1:1 molar ratio will likely swamp the response of a less basic compound (e.g. a ketone/aldehyde). I would guess that you might have to inject an RNH2/RCHO mixture at the 1:100-1000 ratio to get an equal ...
Started 1 month ago (2009-11-13 00:00:00)
by atchon
Isn't this very similar to MALDI tissue imaging? Just using electrospray instead? Pretty cool none the less. Here is the full article. http://pubs.acs.org/stoken/presspac/presspac/full/ ...
Started 1 month, 3 weeks ago (2009-10-20 11:08:01)
by schmo
Hi guys, Been racking my brains over this for sometime - really still have no idea about what exactly I've got. Attached is what I should have: http://i53.photobucket.co...schmodie/20102009226.j pg The molecular weight for this is 731.08. Here are the two electrospray MS http://i53.photobucket.co...schmodie/20102009227.j pg (-ve) http://i53.photobucket.co...schmodie/...
Started 1 week ago (2009-12-07 15:05:00)
by Robert D.
Classification of Three Steroids as Schedule III Anabolic Steroids Under the Controlled Substances Act [Federal Register: December 4, 2009 (Volume 74, Number 232)] [Rules and Regulations] [Page 63603-63610] From the Federal Register Online via GPO Access [wais.access.gpo.gov] [DOCID:fr04de09-21] ================================================== ...
Started 1 week, 1 day ago (2009-12-06 15:01:00)
by asih.net
I mention that the chance of obtaining an actual SARM is small, most likely receiving bogus product. There are multiple instances, though, where the real McCoy is present. I see this in my own practice. In fact, I was responsible for the nationwide seizure of Triax, a purported weigh loss supplement. This was a result of my reporting to MedWatch and the immediate follow-up with a visit by FDA ...
Started 2 weeks, 1 day ago (2009-11-29 14:44:00)
by sinamin
Ok so I just added this to another post I have but I wanted to make one of its own, if this thing works like it says I am AMAZED I wanted to share it with you ladies here is a link and the description. I am in awe... best part? ITS CHEAP! I thought it was expensive coming in at 17.99 but I just read that it comes with 20 strips so its SO worth it, this thing even comes with software that tells...
Started 2 weeks, 4 days ago (2009-11-26 17:09:00)
by vecktor
Mephedrone Analytical data. In French Quote: Is 4-methylephedrone, an “ecstasy” of the twenty first century? Olivier Roussel1 , Martine Perrin1, Philippe Herard1, Marc Chevance1, Patrick Arpino2 Abstract – A capsule, presumed to contain ecstasy, was seized in 2007 and transmitted to the laboratory of the IRCGN for confirmation purpose...
Started 2 weeks, 6 days ago (2009-11-24 12:24:00)
by Mystik Monkey
Quote: Anvirzel is an aqueous extract of the plant Nerium oleander which has been utilized to treat patients with advanced malignancies so basically al alt-health-ish cancer treatment drug Here's what the FDA has to say about it Quote: Identification of Oleandrin and Oleandrigenin in Oleander Extract by LC/MS and...
