8 Questions 180 Answers 0 Followers
Questions related from Yoram Gerchman
Greetings all. As you probably know the "Tryptone" used as component of LB media and alike are the product of digestion of casein. Similarly Cas-Amino acids are the product of acidic hydrolysis of...
10 January 2022 1,939 1 View
Greetings We want to look at the effect of Stratum Corneum composition on bacterial attachment. Does anyone know a commercially available "stratum corneum substitute" lipid mixture? Or is willing...
18 November 2019 1,468 2 View
Greetings I am looking for a trusted protocol for extraction of Heme A, Heme B and Heme O, to be used as standards in HPLC analysis. Alternatively if you know of a commercial source also...
28 May 2019 5,318 2 View
Greetings I am trying to find out what is the origin of the 220nm absorbance peak of free amino acids? It is usually attributed to peptide bond but I find it also in single aa... Yoram
18 June 2018 5,719 3 View
Greetings all I am looking for a fluorophore with excitation at the UVC range (250~260nm) and emission in the UVA/visible range. Ideally one that will not bleach easily. Many thanks Yoram
06 March 2018 1,479 0 View
Greetings We need to buy an RI detector for our Agilent 1200 HPLC system (connected to a computer running ChemStation). Given the high price of new detector I thought about buying a used one....
20 October 2017 6,359 9 View
Greetings Does anyone know the history of E. coli XL10-gold (strategene)? Did it originate from XL1-Blue and what was the procedure? If you have a reference even better. Yoram
19 October 2016 3,948 2 View
Greetings. I am looking for Q-Dots or other high yield fluorophore that exite at ~254nm and emit at ~300nm. Any ideas welcome Yoram
28 March 2016 9,405 2 View
