Katrin Leinweber

4 Questions 14 Answers 0 Followers

Questions related from Katrin Leinweber

Given a list of chemicals with (IUPAC/systematic) names, how can I automate retrieving their molecular weights?

Hello! I have CSV files with several hundred chemicals that I need to populate with their molecular weights. Is there an online database or R-package that can batch-search in that direction (name...

11 November 2014 8,276 6 View

Effective way to break open and sterilise Bacteroidetes cells?

I want to extract intracellular material from a Bacteroidetes strain, but I can't use temperatures above 60°C. Does anyone have experience in the effectiveness of ultrasound, lysozyme or other...

12 December 2013 1,490 1 View

Useful parameters to distinguish colony types on agar plates.

I'm trying to automate the characterisation of diatom colonies sprayed onto agar plates. As you can see in the attached images, there are basically two types: stationary/round and swarming/ragged....

04 April 2013 8,074 14 View

Long-term stability of aqueous, basic NaBH4 solution?

I've inherited a solution of 0.5 M NaOH and 0.2 M NaBH4 in water from mid-2011. Do you have any advice about possible degradation of the borohydride? I know it reacts upon contact with water...

04 April 2013 2,163 2 View