pH

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Questions related to pH

Please can anyone help me with the standard background values accepted for all trace elements in Ghana or specifically for upper east region?

I need the accepted standard background values for these elements; cl,v,cu,co,Ni,zn,Ga,As,Rb,Sr,Y,Zr,Nb,Mo,Cs,Ba,La,Ce,Hf,Ta,Pb,Bi,Th,U. My study area is in the upper east region of Ghana,...

29 September 2022 2,688 1 View

How to obtain 3mc state and ts on the triplet-state potential energy surface?

I research heavy metal phosphorescent tetradentate complexes. I need to find the ts between 3mc state and 3es state ,and 3mc.I read some documents. The method used by some researchers is that the...

27 September 2022 6,112 0 View

How can we mitigate effects of cold injury on coffee berries?

Crops such as coffee are sensitive to cold injury. When it occurs there is loss of quality and quantity. How can we accelarate recovery of cherries from injury when it occurs? High N? P? K?,...

25 September 2022 4,296 4 View

Is there software/database where I can create my own timeline from collated research?

Within the paleoenvironment, changes take place in sea level, tectonics, geomorphology, pollen, temperature, rainfall etc. These changes take place in time (range of years, specific year, or...

19 September 2022 7,906 1 View

How to develop a Ultrasonic Horn?

I intend to design and build a new / custom ultrasonic probe horns. Recommend a book or article to familiarize ourself with design parameters, mechanical and electrical analysis. 1. What is the...

16 September 2022 7,721 0 View

Unexplainable Compressive Force-Displacement curve in Dynamic Mechanical Analysis (DMA)?

I am studying compressive force-displacement curves for Styrofoam using DMA (Dynamic Mechanical Analysis), to study the static compressive force-displacement. The parameters are: Max Load= 9 N and...

10 September 2022 4,383 1 View

Are there published examples of aquifer denitrification capacity being overwhelmed?

Hi All, I wondered if anyone knows of published examples of the denitrification capacity (e.g., weakly reducing aquifers) of an aquifer being overwhelmed? I thought that weakly buffered (e.g.,...

08 September 2022 3,198 2 View

How to maintain 40% of moisture content in soil during one month experiment ?

Hello~ how can relate moisture content in soil and water holding capacity of soil to maintain the moisture of this soil at 40% during one month experiment? thank you

07 September 2022 8,583 2 View

Solubility of BME amino acids mixture?

OK - we cannot find BME amino acid solution anywhere - it is backordered in the whole universe (or so it seems). Not to be deterred, we decided to make it ourselves at a 50X concentration....

03 September 2022 6,549 3 View

Protein extraction protocol for trees (better if conifers)?

Hello, I'm having trouble extracting and spectroscopically measuring whole protein content for conifers (pine and spruce). I'm using a protocol meant for barley. It works well with barley. Does...

29 August 2022 7,954 0 View

Is it possible to get high yield without chemical fertilizers?

To avoid environmental pollution and health damage, alternatives to chemical fertilizers have begun. Is it compensated for high production, or is good quality sufficient?

26 August 2022 2,220 11 View

Is there any mechanism to analysis the physicochemical properties of water with out laboratory or portably?

Ammonia, Nitrate ,Nitrite, Sulfate, Phosphate , Calcium, Magnesium, Sodium ,Potassium and other parameters

22 August 2022 3,334 6 View

How can i prepaire sodium phosphate buffer 0.1 M , PH 7 containing 2.5 mM EDTA and 3 mM DTT?

i want to know if i prepaire monobasic and dibasic then add EDTA , DTT for each of them or will prepaire the buffer then add the EDTA, DTT?

20 August 2022 3,167 1 View

How to induce sporulation in Metarhizium anisopliae?

Good day, I have been trying to revive Metarhizium anisopliae from a month old plate onto PDA + 1% yeast extract, and incubated it in the dark for 13 days. Supposed, there will be sporulating...

19 August 2022 2,751 5 View

Does 10 mM KCl-dilution of micro-emulsion sample lead to better Zeta potential deviation than DI water-dilution?

I measured the Zeta potential of a micro-emulsion sample, separately diluted by DI water and by 10 mM KCl solution. After 6 times of measurements, the Zeta potential results were as following: DI...

18 August 2022 5,239 4 View

Can PLGA use as capping agent for silver nanoparticles?

if I synthesize AgNp via the chemical synthesis method then I want to use plga as a capping agent.

17 August 2022 402 3 View

How to isolate mitochondria from blood ?

I want to isolate mitochondria from blood for further LCMS analysis

16 August 2022 4,836 5 View

If we use Central Composite design and model is not significant?

Hi, I have used central compoiste design with four variables and 3 levels which gives me 31 experiements. After performing the expeirments, I found that the model is not significant. However,...

15 August 2022 2,031 6 View

What can cause high BOD and low nitrogen content in effluent water?

I am trying to calibrate a WWTP on GPS-X and I am getting a feeling that the data I have could be wrong. I have an average of 907, 307, 799, 54.4, and 8.76 coming in and an average of 26.2, 10.5,...

13 August 2022 3,678 3 View

I want to develop an amino acid (L-arginine) conjugated carbohydrate polymer by the reaction of -OH group and -COO group. How could I proceed?

I want to develop an amino acid (L-arginine) conjugated carbohydrate polymer by the reaction of -OH group and -COO group. How could I proceed?

09 August 2022 7,920 1 View

Which one is better amongst nanoemulsion and self microemsifying drug delivery system to improve the drug bioavailability?

Which is better in between nanoemulsion and SMEDDS / SNEDDS?

07 August 2022 2,329 1 View

I haver to conjugate aptamer with nanoparticle using EDC/NHS protocol. Can anyone suggest me whether the NH2 group needs to be added to 5' or 3' end ?

Does addition of NH2 group at 5' or 3' end of aptamer has any role?

03 August 2022 1,871 5 View

Is there any relation between between CMC of surfactant and the mildness of it?

Just wondering to see is there any correlation with CMC of surfactant and its mildness

02 August 2022 771 5 View

Are there cheaper alternatives to C18 used in GA (gibberellic acid )and IAA( indole acetic acid) analysis?

Are there cheaper alternatives to be used during analysis of GA (gibberellic acid) and IAA(indole acetic acid) #gibberellicacid #Auxin

01 August 2022 7,482 0 View

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