Fiaz Ahmad

4 Questions 5 Answers 0 Followers

Questions related from Fiaz Ahmad

Does combined severity factor holds true under higher pH?

Hydrothermal pretreatment results into hydrolysate with higher pH (8.23) based on pretreatment condition. combined severity factor based on the following expression returns a negative value when...

04 July 2016 8,565 1 View

Which SPE (solid phase extraction) cartridge would be suitable to remove pigmented compounds from pretreatment hydrolysate?

In order to make sample suitable for HPLC analysis, I need to remove pigmented compounds (due to high pretreatment temperature, caramelization of sugars) to determine its acid profile and...

17 June 2016 7,048 2 View

Why H2SO4 (72% w/w) is used to determine klason lignin?

I am looking for answer why specifically 72% w/w H2SO4 is used as a reagent to determine klason lignin, why not some other higher or lower percent value?.

06 June 2016 9,350 7 View

How long sugar sample for HPLC can be stored?

According to NREL protocol (NREL/TP-510-42618), neutralized samples after hydrolysis can be stored up to 3 to 4 days in refrigerator afterwards considered compromised. How long samples can be kept...

01 March 2016 7,996 2 View