Effect of different buffers with the same pH?

31 December 2015 1,982 1 View

How to perform Grouping of Pairwise comparison obtained after Tukey Test/One way ANOVA?

I am using Origin 9.1 software for one way ANOVA of my data. The data is attached, I want to compare the mean using Tukey test and represent the significant difference among the means (of control,...

31 December 2015 3,714 5 View

In vitro antioxidant assays-waste of money and time?

Dear All, Recently, I have attended two conferences in Europe (EuroFedLipid, Florence, Italy and EuroFoodChem, Madrid, Spain). During many presentations on ANTIOXIDANTS, I have observed that, many...

09 October 2015 7,769 94 View

Methods for amino acid extraction from plant sources?

07 August 2015 2,236 10 View

WHy do I get High back pressure in my HPLC system after the column?

I am using Agilent 1200 HPLC-DAD system. When the detector end of the column is not connected to the detector line, the regular pressure in my HPLC is 53 bar at 1 ml/min flow rate (with column but...

02 March 2015 2,483 18 View

The difference in the productivity and selectivity of phyochemical extraction in laboratory scale compared to the same in industrial scale?

We have optimized the extraction some phytochemicals in laboratory scale.How can I contend that our optimization should work at a larger scale? What are the factors or aspects influence the...

02 March 2015 8,887 9 View

How to identify triglycerides in HPLC chromatogram?

02 March 2015 4,679 5 View

Is there any problem in analysing triglycerides in oils by HPLC-DAD?

I found several articles with detectors being used ELSD or Refractive Index. I have DAD in my lab. Can we use it for analysis of triglycerides in vegetable oils?

31 December 2014 6,607 6 View

Can anyone provide me JCPDS XRD files for Ag and Au Nanoparticles?

31 December 2014 9,809 18 View

Low R-squared values in multiple regression analysis is allowed to publish in journals?

Hi, I am working on response surface models, using multiple regression equations to fit the experimental data. I am getting R2 values between 0.777-0.888. Lack of fit was found to be...

09 October 2014 5,029 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View