Why am I seeing a fluctuating GCMS baseline/ baseline noise?

I am working with a 7820A GC and 5977B MS. Recently, we changed the helium tank and since then we have been seeing baseline noise in the chromatogram which is high enough to interfere with my...

11 November 2020 6,520 2 View

What can these peaks in PL corresponds to ?

In Zno (pristine and doped) kindly help in the analysis of these PL results at exc. 510 and 380

26 May 2020 7,393 7 View

What can be the reason of getting a negative slope in W-H plot for my synthesised nano material ?

I got negative slope (W-H plot) in my synthesised nanomaterial and on doping that same material , I got negative slope again but it's value decreased . What can I conclude from it .

01 May 2020 2,230 10 View

How to increase the yield of extracellular DNA in extraction process from water samples?

I am using 1% CTAB for extracellular DNA extraction, followed by isopropanol precipitation, phenol chloroform extraction, ethanol precipitation and wash. How can I increase my yield?

02 March 2020 7,947 3 View

For studying electrocatalytic behaviour of a nanocomposite what should I do?

I have prepared MgO nanocomposite in powder form . I want to check its electrocatalytic properties but I have no expertise in making electrodes as it is also not my guide's field. Is there any...

10 December 2019 10,027 3 View

What are the possible effects of the laser incidence angle on the sample(tissue)? Can it reduce scattering?

I am trying to build an optical tomography sytem and generate a SHG. I was wondering if changing my laser incidence angle on my sample can reduce scattering by a bit? Or is it best to keep the...

19 November 2019 7,829 4 View

Why absorbance is increasing on adding doped semiconductor NP?

I hve prepared a Doped Zno with diff conc. For photodegradation of a phenolic pollutant I got absorbance value higher. Is it mean that it can't be used for it or I should try something else

04 November 2019 3,506 4 View

What is the standard procedure to purify gallic acid from fermented sample?

I have carried out the solid state fermentation of organic substrate using Aspergillus niger.I want to purify gallic acid from it.Can anyone suggest me simplest method to do it with references.

18 June 2019 8,156 3 View

Which type of phenol has retention time between 10.91 minutes?

I have analyzed my sample using LC-Ms. The sample was fermented organic waste sample. Aspergillus niger was the microorganism used.

10 June 2019 9,710 4 View

What can be done if peaks are not coming proper for organic acids using LC-MS?

I have carried out solid state fermentation of sample containing organic waste.Due to limited facilities, I could only do filtration and centrifugation for my sample.But,when I subjected this go...

25 May 2019 4,856 3 View

How do I measure Arabidopsis germination rate?

Hi there, I'm looking for a way to measure the Arabidopsis germination rate, like what media I should use to plant the seeds and what indicator I should see for germination. I'm planning to...

02 February 2021 4,785 3 View

What are the different subclasses in intermediate seeds?

I am currently working on an endemic tree species, that produces mature seeds (moisture content 51%) which shows both vivipary (30% of total harvested seeds from a tree) and dormancy (~40%) of...

20 January 2021 2,670 3 View

What type of false light is best for checking seed germination (in dark treatment)?

Hi I have been asked to check a weed species germination characteristics in "light" and "dark" treatments. Can someone please advise what type of "false light" I should use to check germination...

14 January 2021 5,943 4 View

What will be the appropriate data collection method and data analysis that I can employ with may experimental research on squash germination?

I am conducting an experimental research on the germination enhancement of squash affected by mechanical, chemical and thermal scarification methods..i have researched about time- to-event method...

27 December 2020 7,133 3 View

What is the role of Phytomelanin in seed coat?

We know commonly found in seed coat at Asparagales and Asteraceae family But, what is the role of Phytomelanin in the seed coat? Is it only a protector?

03 December 2020 7,493 5 View

Why do the allelopathic produce a positive effect?

Following an experiment where Zea mays and Cucurbita pepo seeds were planted individually and together, results showed a positive allelopathic effect on germination and seeling lenght as both...

03 December 2020 1,875 6 View

Can anyone help with setting up the R germinationmetrics Package using multiple species and treatments?

I have 14 species, 6 temperature settings and two treatments to examine germination responsiveness over 59 days. I want to start with some basic info for plotting (t50, Gmax etc). I want to...

18 November 2020 7,160 4 View

In arid regions, what environmental factors have a greater effect on the establishment and germination of rangeland plants?

In arid regions, what environmental factors have a greater effect on the establishment and germination of rangeland plants? Describe the effectiveness of the priority

16 November 2020 3,642 9 View

What is the index of germination and howa calculate it??

16 November 2020 4,856 8 View

How to equalise scale (length ) in different size images?

I have 3 images of plant germination and each image is of different dimensions. I resized all of them using paint to 600 (width) X 450 (length) pixels. But the scale size in the 3 images is of...

04 November 2020 4,134 3 View