What exactly is the function matrix modifier solution that is in used in the analysis of blood lead concentration using GF-ASS?

Shamsul Bahari Shamsudin @Shamsul-Shamsudin

21 January 2015 1 4K Report

Please advise

S. Béatrice Marianne Ewalds-Kvist

Dear Shamsul,

Check this link out:

http://www.cdc.gov/nceh/lead/publications/1997/pdf/c1.pdf

More Shamsul Bahari Shamsudin's questions See All

DNA Extraction from old clot blood?

I want to separate DNA from human old clotted blood . I haven't any idea how to extract DNA from it. Your kind expertise and thought would be appreciated.

07 October 2020 7,871 2 View

How to calculate linear refractive index value from the uv-vis spectrum for the liquid sample?

is there any specific equation to calculate the linear refractive index at different wavelengths of the liquid sample from the UV-Vis spectrum? thank you

22 September 2020 5,839 4 View

What is the latest trend or updates in the study of Gamification in education, especially in enhancing engagement and motivation?

Seeking the latest development in gamification research particularly in education whereby gamification is used to increase student engagement with the lessons and later improve their motivation to...

07 October 2019 2,743 2 View

How to check secretory protein concentration from cell culture media by spectrophotometer?

I am going to culture a cell line with 20% FBS in IMDM medium. Those cell will secrete protein. I need to check the protein concentration from the culture medium by using spectrophotometer. Can...

17 September 2019 6,047 1 View

How to prepare bacterial complex of several different strain of bacterial mixture to treat mouse.??

I want to treat a bacterial mixture to mice. I have 6 different strain, now how should I prepare the bacterial complex mixture to mouse.

03 June 2018 8,575 2 View

Quercetin, How much I should administrate to mice?

For quercetin how much I should administrate to mice, and what will be the administration route? Please suggest

16 May 2016 3,454 2 View

What titrant should be use in titration of sample in DMSO?

I am doing titration of sucrose stearate in DMSO solution. I had tried using ethanolic KOH and NAOH but when i titrate the control, the volume of titrant does not follow the theory volume. So,...

14 January 2016 5,511 3 View

When I add 1 mM B mercaptoethanol with 1 mM KAuCl4, a white precipitation occurs straight away. Is that the thiolate-protected gold clusters ?

Need some help on Gold Chemistry !!

29 November 2015 6,585 3 View

What is the most accurate biological sample that can indicate heavy metals exposure?

Human biological sample...

09 February 2015 3,420 21 View

What is the meaning of my Theta-2 theta scan in XRD measurements for Heteroepitaxial growth of GaAs thin films on silicon?

To evaluate the material quality, I have measured the XRD of my as-grown structures by performing theta-2theta (TTH) scan which exhibits poly-crystallinity as shown in the attached file. I have...

04 August 2014 2,679 53 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 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

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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 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