Is anyone knows how to isolate DNA from drinking water contaminated with bacteria ?

I would like to isolate DNA from water samples that contains 10 to the power 5 cfu/ml

09 October 2017 4,956 1 View

How can we eliminate the interference of anions in analysis of silver by Graphite furnace atomic absorption spectrophotometry?

Chlorides, phosphates interferences

03 April 2017 663 7 View

How do I prepare contaminated water that contains 10 power 5 cfu/ml of E.coli?

Would like to do antibacterial activity.

01 February 2017 3,090 1 View

Has anyone investigated the quenching action of silver nanoparticles when it reacts with sodium thiosulphate?

I want to study about the disinfection property of silver

08 September 2016 9,254 3 View

What is the role of EDTA in 10 mM Phosphate buffer that is used to grow micro-organisms??

In a paper it is given that 0.02g/L of EDTA should be used. Will it act like chelating agent and affects the growth?

08 September 2016 8,894 0 View

Can sodium chloride acts as disinfectant? In that case, why are we doing serial dilutions with saline solution to find out viable colonies?

Serial dilution to enumerate colonies

06 July 2016 5,478 2 View

How can we obtain a modification factor for creep parameters?

I want to obtain standard creep parameters of salt rock by creep parameters of rectangular samples. Is there a modification factor to convert creep parameters of rectangular (prismatic) rock salt...

01 March 2021 7,131 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View