Yehya Boureghda

4 Questions 10 Answers 0 Followers

Questions related from Yehya Boureghda

Can any one explain the difference between vibration modes and assignments in infrared analyses?

When I read this short paragraph, ''- Vibration modes was in Greek letters for stretching and bending vibrations etc; Use amide I, II and III identifications. - Assignments like...

30 August 2020 3,167 5 View

There is a difference between Nitrogen level of chitin determined by, Kjeldahl method, CHNS elemental analysis and EDX elmental analysis?

Extracted chitin was subjected to Kjeldahl method, the result of nitrogen level obtained was 1.7 % ; however, EDX elemental analysis present various values of nitrogen form 3 to 6 %. How can we...

21 August 2020 9,063 5 View

What are the equation and conversion factor to estimate protein content from mushroom?

Total nitrogen was calculated with Kjeldahl method, I found different equations and factors ''Total nitrogen content of shrimp waste was determined using the Kjeldahl method. Separately, pure...

18 August 2020 4,740 9 View

Consultation on the bleaching step during the isolation of chitin?

Can any one describe a suitable conditions and solvent to isolate pigments from fungi chitin? I used ethanol,chloroforme/methanol/water..no result obtained I get white powder with the solution...

03 March 2020 619 2 View