Why Negative peak eluted in HPLC analysis?

I'facing problem while doing HPLC analysis due to negative peak was eluted which was corresponding to the principle peak RT. I tried to remove, with different solvents, but no use. i want to know...

26 November 2020 1,960 5 View

How can I analyse the data from case study in qualitative research ?

When I use purposive sampling method especially homogenous sampling to select the participants and then followed by my selection process the data can be collected by using case study for my...

13 November 2020 6,411 7 View

What are the main tools used to analyze the data which is collected from the qualitative social work research ?

i have used case study and non participant observation as a research methods in the qualitative research , hence i need some tools to analyze the collected data....I've belongs to the social work...

25 October 2020 438 8 View

Anyone knows about .odb_f file generated by ABAQUS?

Hello all, I'm running a Bone Remodeling simulation in ABAQUS in which I just use basic ABAQUS Static simulations in every loop with an amplitude table to model the loading behavior & after...

19 October 2020 4,417 2 View

How to apply distributed load in a 2D model with plane stress/plane strain thickness in ABAQUS?

Hello all, I'm currently working on setting-up a 2D bone remodeling problem of a femur from literature. I take a 2D femur geometry and give it an out-of plane plane stress/plane thickness in...

06 October 2020 2,623 5 View

How to Identify and Estimate the Lactic acid from the Microbial fermented broth other than HPLC using Simple methods?

How to Identify and Estimate the Lactic acid from the Microbial fermented broth other than HPLC using Simple methods? if possible such as 1. Calorimetric or Spectroscopic methods and much more

26 August 2020 349 10 View

Is there any list available of GRAS (generally recognized as safe) microorganisms with proper references?

Is there any list available of GRAS (generally recognized as safe) microorganisms with proper references?

02 March 2020 1,011 2 View

What are all the possible reasons for Spontaneous symmetry breaking in a double quantum well system?

Dear frnds, From my point of view SSB is happening due to following reasons in double quantum wells. 1. Due to variational technique 2. symmetry in envelop function and...

19 October 2019 6,248 2 View

Which stain is used to see the deposition of oil or oil glands in anatomy section of leaf(transverse section) in cymbopogon?

Cymbopogon is an aromatic grass which produces essential oils as a secondary metabolite so to see the deposition of oil in leaves transverse section of intra and inter species can you suggest me...

28 August 2019 9,357 2 View

What is the difference between lithium ion and lithium polymer battery?

Lithium ion and lithium polymer battery charging and discharging profile was found to be same. Then what is the major difference between both battery?

07 July 2019 9,301 4 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View