How to measure pH of ice sample?

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Did Saint John the Apostle die as a martyr and when?

I believe that the author of the fourth Gospel is John the disciple Jesus loved. If John the Apostle died with his brother James or soon later on this would solve my problem for the next paper.

28 September 2023 4,043 1 View

Total n in metamean in R?

When we run metamean function in R, does total number of n will be provided? I just came across number of observations in the result

24 August 2022 3,985 0 View

How to find minor allele frequency for a novel snp?

I have found a novel variant in my dataset. In order to solidify my finding, I intend to do some more statistical testing on it, like detection of minor allele frequency in various sub...

16 September 2020 5,302 0 View

How to conduct Multiple Sequence Alignment of Introns ?

I am planning to compare introns of a specific gene in various species, in order to detect intron loss or gain. I believe multiple sequence alignment is the best way to do so. In addition, I do...

21 August 2020 9,629 1 View

Schottky diode reverse bias operation of a metal/p-Si device, which barrier height are we measuring?

In a Schottky junction between a metal/p-Si device, in a forward bias operation, the measured barrier height is the holes from p-Si to metal junction. In reverse bias operation, which barrier we...

07 August 2018 9,773 3 View

How to increase BVDV titre ?

hi all. currently i have problem regarding harvesting high titre of BVDV. normally i just manage to get logTCID50/mL 5.5 which is very low as i have to get at least 8.0 for disinfectant virucidal...

05 October 2017 1,552 5 View

For mixed conductors (ion and electron) how can we distinguish the activation energy contributed by ion and electron?

Activation energy at high temperature region corresponds to mobility energy. For mixed conductor, how can we determine the value of mobility energy due to the ion or electron? If we know the...

01 October 2014 1,755 6 View

How arrhenius plot can has two different types of Y axis ie lnσT and lnσ?

Arrhenius plot for conductivity. Arrhenius equation (in the case σ is conductivity) σ=σ0 exp(-E/RT) lnσ=lnσ0 -(E/RT) So, graph is written as lnσ (for Y axis) versus 1/T. I understand this. But I...

11 August 2014 2,986 4 View

What is the correct technique to obtain bronchoalveolar lavage fluid (BALF) for an asthmatic study?

Is there anyone that can share the correct way to obtain BALF from mice models of asthma? I've tried to lavage the lung via trachea with phosphate buffered saline (PBS) however after I inserted...

10 April 2014 9,386 3 View

Do you have experience culturing the hRBL-2H3 cell line?

I'm going to use the RBL-2H3 cell line for my in vitro study involving the inhibitory activity of honey bee product on mast cell degranulation. I just want to know if there is anyone who has...

27 January 2014 7,669 4 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

How to check pH of a high strength hydrogel?

We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...

30 July 2024 942 2 View

EDTA buffer solution?

Hello everyone! How can i prepare EDTA buffer solution (pH 8.2) to determine GSH levels? Thank you in advance.

29 July 2024 4,374 1 View

Whether i can preserve leaves samples in 2.5% glutaraldehyde in 0.05 M phosphate buffer, pH 7 for coming several weeks for further LM study ?

I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.

29 July 2024 8,560 0 View

How can I regenerate a SCX column modified with Sulfonate group (Thermo 054995)? The colmun has lost its Resolution and peak to valley ratio?

The column is used in Ion Exchange Chromatography of Monoclonal antibodies and the method of analysis is based on pH gradint.

13 July 2024 7,462 1 View

My Cyclic voltammetry curve doesn't show cathodic peak of Cu2+ to Cu+. how to solve this problem?

I performed CV of Cu-MOF in a buffer solution of pH 8, and we did not find any peak corresponding to Cu2+ to Cu+. What is the reason behind this? Please give your valuable suggestions.

08 July 2024 2,388 4 View

Is it possible to generate a (semi-)permanent "transcription bubble" within a replicable plasmid?

I was wondering if it is possible to form a permanent open "ssDNA bubble" similar to a transcription bubble (>13 nucleotides) within E. coli. These criteria are important: 1. Open ssDNA...

07 July 2024 8,275 5 View

Is it possible for the soil pH to be around 8, but with negligible amounts of carbonates, bicarbonates and exchangeable sodium?

Can this pH of 8 be due to the presence of other substances? Or do I have an error somewhere in the analysis? Thank you!

26 June 2024 9,093 4 View

Which pH range is allowed for subcutaneous pump administration?

Hello, We are designing a protocol to determine the effect of certain compounds in the health of rats, but our problems have certain instability issues when subjected to certain pHs. We were...

19 June 2024 5,950 1 View