May cold crystallization occur AFTER melting poit by PE and PP?

04 May 2019 1,264 7 View

No title

31 December 2018 3,144 4 View

Signal-to-noise ratio in mass spectrometry (TGA-MS)

Hi all, is there any proper way, how to determine a signal-to-noise ratio in mass spectrometry, in particular in TGA-MS system? And do I really need it when I already have my LOD and LOQ...

03 April 2017 5,314 3 View

Is a chloride ion-selective electrode with reference argentochloride electrode suitable for an Ag(s)/AgCl(s)/KCl (aq.,sat)/Fe3+,Fe2+/(aq.)/Pt system?

Hi all, May I use the chloride ion-selective electrode with reference argentochloride electrode and Ag2S membrane suitable for an Ag(s)/AgCl(s)/KCl (aq.,sat)/Fe3+,Fe2+/(aq.)/Pt (s) system in order...

03 April 2017 9,012 7 View

Possible TGA pyrolysis products of potassium ferrocyanide K4[Fe(CN)6] ?

01 February 2017 8,653 3 View

Determination of sulfides (Na2S, Na2Sx, H2S) from aq. solutions ?

Are there any possibilities to determine sulfides (preferrably in the form of Na2S, Na2Sx, or H2S) from an aqueous solution, where MilliQ-water and 25 mg/L or 125 mg/L of trisodium citrate will be...

01 February 2017 6,908 1 View

Are there any microwave digestion procedures for sulfides (e.g. Na2S, Ag2S) for further determination of S via ICP-OES ?

31 December 2016 3,252 3 View

When performing pyrolysis of soil and of PET via TGA-MS and becoming a signal of mass 57, may I attribute it to [CH3CH2CH2CH2]+ and/or [CH3CH2CO]+ ?

05 June 2016 6,240 2 View

Standard of PET?

09 October 2015 4,907 7 View

How do you prepare sodium polysulfide Na2Sx in aqueous solution?

How can I easily prepare the sodium polysulfide Na2Sx, preferrably in aqueous solution? Does it the simple mixing of Na2S with sulfur powder in aqueous solution?I was searching for information in...

10 November 2014 9,252 34 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 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

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 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

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View