Noor Aljammal

5 Questions 21 Answers 0 Followers

Questions related from Noor Aljammal

Why I am getting negative peaks and unstable baseline on HPLC?

I am using a Bio-Rad column for 5-HMF detection and and RID. My mobile phase is 0.005 H2SO4 and when I run my sample I get one negative peaks and no clear peak for HMF

09 September 2019 8,169 14 View

Why is the activation energy determined using a flow reactor different from that estimated in a batch-type reactor?

Why is the activation energy determined using a flow reactor different from that estimated in a batch-type reactor? If reactants used (i.e., substrate, catalyst, and solvent) are the same,...

08 August 2019 5,323 12 View

Can you advise regarding RID detector detecting range for fructose and HMF?

Quantification of 5-HMF and fructose performed using a high-performance liquid chromatography (HPLC, Agilent 1200) equipped with a RID detector and reversed phase C-18 column at 30 °C. I used a...

11 November 2018 4,783 12 View

Any suggestion for simple and cost-effective method to increase the hydrophobic properties of CNTs?

Hydrophobic properties of CNT, oil removal, adsorbent

09 September 2018 5,538 1 View

I used standard KHP as part of a mixed standard for (vario TOC cube) calibration to measure Octane content, the results were far from expected?

The following is the mixed standards 1.KHP2. Na2CO33.NaNO3 4.NH4Cl so which is the best method of calibration to measure carbons content after adsorption: Multiple point calibration from one...

03 March 2017 6,532 3 View