How to convert counts to concentration in ToF-SIMS profile?

I have taken ToF-SIMS profile of boron and phosphorus in silicon film grown on silicon substrate. I have used diffusion furnace for boron and phosporus diffusion. Please see the sample curve I...

25 August 2020 5,541 7 View

How to fabricate a uniform pinhole free thin film CdS via CBD?

What precursor materials should I use for Cadmium and Sulphur and what are the optimal deposition conditions (i.e. concentration, time, temperature and pH level) for the synthesis of Cadmium...

23 July 2019 6,451 3 View

How can I get conductivity from the impedance analyzer (AC). I got resistance from the machine reading. How to convert it to conductivity?

Is it possible to measure directly the conductivity from the impedance analyzer?

24 February 2018 6,306 2 View

How it can be proved that biennial onion has converted to annual?

02 July 2017 6,668 2 View

Noise modeling of a raw signal ?

22 October 2016 6,638 6 View

How i will calculate technically efficiency of a major cropping pattern?

In greater Noakhali region, soybean has been cultivated since 1982 within a cropping pattern Soybean- Fallow- T. aman or Soybean- Dibling Aus rice- Transplanted Aman rice (Rainfed condition). In...

29 August 2016 8,679 4 View

How to estimate the periodicity of a signal ?

31 July 2016 8,617 10 View

How to solve the quadratic equation to evaluate the value of X (note that values of P and Q are known), Q=X/4 [1-P/X]^2 ?

08 July 2016 4,277 4 View

What is the best way to wash microplate assay for ELISA experiment?

14 June 2016 8,488 1 View

Normalizing the Signal to noise ratio results over an array ?

30 May 2016 1,575 9 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View