Pui Kee Lee

4 Questions 8 Answers 0 Followers

Questions related from Pui Kee Lee

Reason why noise occurs at peak potential for a hexacyanoferrate in Amperometry Testing?

The oxidation peak current for my synthesised HCF at +0.7V. The peak potential remain as the same in the presence of 1mM analyte. (both in CV) When I test the optimise potential in amperometry...

09 September 2017 6,771 4 View

Why the current response of chronoamperometry is far more lower if compared to CV in same potential?

The peak current of my modified electrode is approx. 40uA at 0.7V and the current increases when analyte is added. However, when I run it in chronoamperometry, the current is in nA range. When the...

08 August 2017 2,785 8 View

Different Trend of current vs. concentration in CV and DPV

I encountered one interesting phenomena, in CV and LSV, the peak current increase with increasing concentration of analyte but the trend is inverse in DPV. Please see the attach data

06 June 2017 10,015 5 View

100 times difference in Rct for electrodes modified with same materials and only the deposition cycle varies

Why the electrodes modified with same material (the variation only different deposition cycle) have so much different (approximately 90 times) in Rct for 10 cycles/layers and 20 cycles. From my...

05 May 2017 6,240 4 View