Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

What is the reason film thickness increased?

what is the reason film thickness increased when increased doping concentrations give some reasons The measured film thickness is 156, 282, 394, 548 and 681 nm for 0, 1.5, 2.5, 3.5, and 4.5 wt....

17 February 2021 8,987 5 View

Queries regarding the rain flow counting algorithm?

02 February 2021 9,790 2 View

How to determine the genetic potential of the genotype in terms of fruit size and weight?

In addition to genetic and environmental factors, fruit size is also influenced by crop load, rootstock, orchard planting system/tree training system, pollination, water and nutrient management,...

13 January 2021 9,309 4 View

What are technical problems working with HCT116 colon cancer cell line ? how is it maintained and cultured to study the anticancer effects of a drug?

Technical problems working with HCT116 compared with other cell line Caco-2 and HT29

07 January 2021 2,067 3 View

Is it possible to ligate two restriction ends those have no complementary bases?

In my lab,we are trying to construct a control plasmid. So we have to remove the insert gene which has two restriction ends:one is XhoI and other one is Hind III.So after double digestion we want...

01 January 2021 3,271 4 View

What are causes of obesity or overweight?

I am writing research orientationed book

24 December 2020 2,595 3 View

Is it machine learning models that have replicability capability?

We are doing the prediction of soil nutrients using spectral information by applying machine learning models. More than 300 soil samples were used from one district for analysis. We got the...

21 December 2020 9,663 3 View

How can I analyse and compare crop yield under different irrigation methods?

I have to compare yield parameters of a tree crop grown under three irrigation methods. But these systems are already established separately in three adjacent fields. Since I can not follow a RCBD...

21 December 2020 3,065 5 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

Can I simply dilute 25% NH3 solution to 10% solution by pouring water in tank and circulating with pump?

Is there any heat of dilution which I need to take care by putting some circulation cooler? Will there be any significant ammonia emission in the process?

09 February 2021 5,943 2 View

PEG coated Fe3O4 nanoparticles in aqueous NH3?

Hello, I synthesized PEG coated Fe3O4 nanoparticles by coprecipitation methods and I would like to ask whether they can be dispersed in aqueous NH3 since they have a PEG coating and theoretically...

06 February 2021 5,217 4 View

Writing participant characteristics in method while being LGBTQI+ sensitive?

I apologize in advance if I come across as ignorant. I am trying my best to educate myself on LGBTQI+ community and how to write them in academic writing. I have a sample of X participants in a...

29 December 2020 9,011 3 View

Best Way to Preserve Nitrifying Bacteria in Liquid Culture?

I have a heterogeneous culture of nitrifying bacteria that was originally isolated from the field. It has been kept alive for several months in a bioreactor. I want to pull some of this...

18 December 2020 5,411 4 View

Does anyone know how to go about staining both the apical and the basolateral side of a costar (pore size 3um) trans well?

I have cells seeded on both the apical and the basolateral side of a transwell. I would like to stain both sides to observe the cross talk between both sides. I've been looking for protocol, but...

07 December 2020 8,627 1 View

How to compute pressure drop on liquid ammonia line?

I have to analyze an existing ammonia line to estimate the pressure drop in it. The line is designed to transport liquid ammonia. I can compute the pressure drop with standard friction factor...

21 November 2020 5,494 3 View

Has anyone tried separating cis and trans isomers of fatty acids derivatized as their trimethylsilyl esters using N,O-BSTFA reagent on FAME columns?

I have not achieved separation of cis and trans fatty acids derivatized as trimethylsilyl esters using N,O -BSTFA on the DB-5 Column, but I prefer this derivatization method as it is rather...

18 November 2020 4,993 3 View

How to understand the spectral residual anomaly detection (SR-CNN)?

I was reading "Time-Series Anomaly Detection Service at Microsoft" (https://arxiv.org/pdf/1906.03821.pdf) in these days, and I got some problems for the programming part. The first picture...

17 November 2020 920 1 View

I am looking for air pollutants data for SAARC countries. Any organization or website that you love to recommend?

I am doing econometric modeling for air pollution and some other variables. But don't have the latest data (2000-2020) of air pollutants such as carbon monoxide, PM2.5, PM10, NOx, SO2 and ammonia....

27 July 2020 6,624 4 View