What is the best method for dissolution of lipstick for AAS analysis?

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Good day friends and colleagues. Please does anyone has a citable document on how to estimate sample from a population of study?

Good day friends and colleagues. Please does anyone has a citable document on how to estimate sample from a population of study. Say for example: from a study population of 6000 sample should 476....

24 December 2023 7,414 2 View

Can i get a Link to download this software (FTEval (Fractal Track Evaluation) and FTAuto (Fractal Track Automatic))?

I hope to use this two softwares to analyze track irregularities data for fractal dimension calculations and also a guide on how to use it. Thanks in anticipation.

25 May 2022 3,501 0 View

Are AIJR journals/publishers predatory? They seem not to be on Bearls List of Predatory Publishers?

. Are AIJR journals/publishers predatory? They seem not to be on Bearls List of Predatory Publishers

24 September 2020 3,866 2 View

In this pandemic period (COVID-19), what are the factors that hinders the use of mobile learning in technical colleges?

Problems of mobile learning in pandemic period

30 April 2020 6,259 13 View

Who can help me the English version of the e-copy of this journal paper?

Gender, Entrepreneurial Self–Efficacy, and Entrepreneurial Career Intentions: Implications for Entrepreneurship Education Fiona Wilson, Jill Kickul, Deborah Marlino,First Published May 1, 2007...

16 August 2018 8,002 4 View

How do I measure the level of tax evasion in low and middle income countries?

Low and middle income countries have large informal sector that are not captured in the tax net. This is a serious challenge in tax administration.

18 October 2016 6,977 11 View

Is anyone working on Track Irregularities Data using Fractal Analysis (Ruler or Divider Method)?

I am currently working on a project and using Fractal analysis as my methodology, could anyone help me with any link/software to help in analyze large volume of data?

01 January 1970 9,458 0 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I add own Henry coefficients in Aspen Plus?

Hi, i would like to simulate an absorption process in Aspen Plus. I want to use the NRTL model und would like to add some individual Henry coefficients. Is that possible and how?

05 August 2024 2,333 2 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View

Given the current level of natural phenomena cause by the climate change and environmental pollution, will the AI find the technological solutions?

AI-driven technologies offer previously unheard-of capabilities to process enormous volumes of data, extract insightful knowledge and improve predictive models, according to the UN’s World...

31 July 2024 9,733 3 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View