Can i make use of Potassium ferrocyanide in place of potassium ferricyanide in the assay of sterol color development for UV-Vis spectrophotometer reading. using it along with sulfuric acid and FeCl3.
I want to analyze rumen fluid samples in aqueous state for volatile fatty acids on a GC-FID. We only have a Bpx70 column. Can this column be use?
24 September 2020 7,797 4 View
I want to prepare Volatile fatty acids standard mixture from individual acids bought from Sigma Aldrich. I have seen different volume mixture contradicting. I need a standard procedure/ volume...
17 September 2020 2,219 3 View
Phytochemical analysis of plant extract, tannin proportion
10 November 2018 6,719 1 View
i want to know the step by step process and how to eventually construct the graph and calculate the Quantity of the phytochemicals from the curve in mg/g
03 January 2018 9,471 3 View
31 December 2017 6,822 3 View
I extracted plant material using 80% ethanol and i want to dry the extract. I have condensed the the extracts on water bath to remove some of the solvent.I put the thick extract in the freezer but...
10 November 2017 8,450 8 View
I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...
22 February 2021 5,324 3 View
I am currently working on my dissertation and want to explore the role of competence as a mediator between the effect of colour of clothes on voting intention (focus on Western countries)....
21 February 2021 8,609 1 View
What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...
21 February 2021 1,831 4 View
I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...
17 February 2021 7,402 4 View
i have been doing cholinergic assay on natural product and for some of the samples, i get negative value for the inhibition activity. can anyone help me explain the meaning of the negative value...
17 February 2021 4,118 1 View
Hi there, my lab recently opted to use LavaLAMP from Lucigen instead of the Warmstart kit from NEB. However, Lucigen has yet to create a colormetric kit for RT-LAMP, and adding phenol-Red (pH...
17 February 2021 5,399 1 View
I am studying biochemistry at university, as part of the course we do several titration experiments. In our handouts, we were given the following half equations: IO3- + 6H+ + 4e- I+ +...
16 February 2021 8,731 1 View
Activated carbon is prepared from biomass using KOH as the activating agent. What is the possible reaction between KOH and the biomass?
14 February 2021 8,095 4 View
I need a stack of black and white .jpeg/.tiff/.jpg/.png images across time of either action potentials, neurons firing, or brain scans (comparing disease and normal brain, disease progression,...
09 February 2021 2,648 3 View
As an inexperienced teacher in the field of online teaching, I have the fear of unconsciously ignoring one of the skills while focusing on not ignoring the other! Therefore, I wish to make use of...
09 February 2021 5,101 4 View