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Questions related to pH
Hi, anyone can share how to check the pH of ice sample? Need to wait for the ice to melt to room temperature (25°C)?
24 February 2022 2,435 2 View
In this place we can also find a great diversity of benthos and nectons?
24 February 2022 3,964 3 View
Hello. I am running cyclic voltammetry with bare gold electrode. The voltammograms are very different from that in literature. Please see attached file for the image. What could be done? Thank you.
23 February 2022 7,034 6 View
Hello, we have WTW inoLab pH 720 for pH measurements. For calibrating it after displayment of 'ConCal', pH electrode submersed to pH 7.0 solution. Then we press 'Run Enter' and pH value starts to...
22 February 2022 9,196 2 View
Soil pH and EC whether directly or indirectly proportional.
21 February 2022 4,595 3 View
My soil data shows consistent lower pH values during the colder seasons (winter) eg 4.7 as compared to the warmer seasons with rainfall (summer autumn) eg 5.4. I have read alot of literature...
20 February 2022 4,728 9 View
I have been growing duckweeds in Clark solution (pH 6.5) and have noticed a 2 log pH shift down . I have checked the solution (blank) and there is no pH change in it. Does anyone know of an...
18 February 2022 3,812 2 View
I wanted to know whether nitrate changes its form with change in solution pH?
17 February 2022 1,908 3 View
We have deposited Indium doped (1, 2, 3 vol % ) ZnO i.e IZO by reflux method. We have recorded room temperature PL spectra of undoped and IZO samples. We observed that with increase in conc of In...
15 February 2022 8,870 4 View
Hello everyone I'm working on photocatalysts based on g-C3N4 and Co3O4 and the junction formed seems to be type II. Is there any method to make sure that the junction formed is a scheme...
13 February 2022 1,493 5 View
The SMA test is a metabolic assay to evaluate the ability of the anaerobic sludge to convert organic substrate into methane. its advantages include: Helping to determine the maximum organic...
11 February 2022 2,028 2 View
We have loaded the graphite nanoparticles in kerosene based fuel at 10wt% by varying the surfactant loading at 0.5-3wt%. 1. I want to measure the zeta potential, which solvent should I use to...
11 February 2022 8,086 5 View
Hello all, I am doing some analysis where I need to associate KEGG pathways to samples. I only work with prokaryotes so I would only like to analyze KEGG pathways associated to them....
11 February 2022 5,246 2 View
Hello, I am currently preparing 0.2M PBS solution, pH6.6 from 1.0M PBS solution, pH7.4. I adjusted the concentration by using M1V1=M2V2 formula by adding distilled water. Is this right? And can...
09 February 2022 8,248 3 View
Any complications? What is the acceptable range?
09 February 2022 6,882 1 View
I have 12 samples of plant samples of dried leaves. I want to check phosphorus and sulfur concentration in the leaves. I am searching for an appropriate method with better accuracy and feasibility...
09 February 2022 6,245 9 View
Hello Everyone, I have found that the zeta potential values of my samples are very close to zero. I have used TWEEN 80 and SPAN 80 at different proportion. The HLB value I have kept in the range...
08 February 2022 8,130 7 View
The field capacity (FC) is the water-retaining capacity of a soil usually including both the hygroscopic and capillary water of the soil and being expressed as a percentage of the dry weight of...
07 February 2022 1,896 2 View
Soil phosphorus and potash
04 February 2022 644 16 View
I understand that inductively coupled plasma (ICP) means inductively coupled plasma, which has coils around the dielectric wall, and reactive ion etching (RIE) uses combination of chemical and...
04 February 2022 3,054 3 View
Whether soil pH and EC is really indirectly proportional or not. Please share your thoughts with some scientific reference.
02 February 2022 10,000 7 View
I am growing cyanobacteria (PCC7942 and 6803) in BG-11 either with or without bicarbonate+HEPES, and seeing a very high pH (9-10) after a few days of growth regardless of the conditions. Any ideas...
02 February 2022 602 3 View
Hello, recently we have been working with the cyanobacterium Arthrospira platensis (Spirulina) and noticed, in shake flask culture cultured on an orbital shaker at 100 rpm, spherical cells and no...
02 February 2022 6,496 5 View
I recently requested a Lactobacillus rhamnosus strain from ATCC and it will be delivered frozen. But I don't know the protocol to revive it and they can't provide that technical information....
31 January 2022 4,052 2 View