What is the the chemical compound of Pb ions source used normally in detection pb in water?

More Ali Abdulkhaleq Alwahib's questions See All

Why multiple paths of light in optical fiber can cause signal distortion at the receiving end?

In long cable runs suffering from signal distortion and can effect on the information transition why

10 November 2018 5,297 1 View

Is it possible to add Ag nanoparticles to Graphene oxide solution directly to form GO-Ag composite solution?

Add nano-particles to GO solution to form GO-Ag

03 April 2018 4,673 7 View

What are the difference between MO-SPR and SPR?

Why we use different curves (not like SPR) to show MO-SPR? is it possible to use MO-SPR as reliable sensor?

02 March 2018 8,895 0 View

Why scientific journals reject papers for english mistake more than scientific mistakes or missing some scientific information?

why english mistakes in most journals is a big problem? faster rejection than any other mistakes

09 October 2017 4,622 10 View

What is the common way to remove all types of heavy metals from tap water?

is it possible to remove all heavy metals from tap water if yes how this can be done ? is there a common technique to remove all or most heavy metals in tap water are applied now ? thanks for...

04 May 2017 535 5 View

I have problem in ( peel off) of reduced graphene layer deposited on gold layer. how to prevent this?

reduced graphene deposited using Spray deposition, I used it in high speed water application.. I am thinking in one of coupling agent such as EDC/NHS ( alone ) but I don't have scientific...

06 July 2016 6,547 1 View

What is this line means .." non-zero probability of finding"?

There are more accurate models " it seems that there is a non-zero probability of finding particles with negative sizes in the sample"

04 May 2016 6,982 5 View

EDC/NHS how it is look like under microscope or SEM image (shape) alone ?

any idea about the shape of EDC/NHS look like under SEM or Microscopic image>> without any additives alone

02 March 2016 8,147 4 View

When I charged the normal water with negative charges the resistance increased ....is this true or not ??

is the resistance will change with increase the negative charges in water

08 September 2014 4,390 2 View

How can I calculate complex refractive index (experimentally) and theoretically ?

N=n+ik How can I find n and k experimentally? I have composite material and I want to find the n and k to it .

31 December 2013 854 7 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

Why is nonpoint source pollution potentially more harmful and difference between point and nonpoint sources of water pollution?

01 August 2024 1,180 2 View

How do living organisms play a role in the water cycle and why is nonpoint source pollution potentially more harmful than point source pollution?

01 August 2024 7,061 2 View

The use of data from PubChem for commercial purposes?

Hi, I'm curious to know if data on chemical compounds from PubChem, such as water solubility properties, can be used to train a machine learning model for commercial purposes. Will this infringe...

30 July 2024 8,707 1 View

What are the best practices to combat water scarcity in arid and semi-arid regions?

Water scarcity is a significant issue in arid and semi-arid regions due to limited rainfall and high evaporation rates. To address this challenge, various strategies and practices have been...

28 July 2024 7,611 2 View

What are the best innovative materials for harvesting water in arid and semi-arid regions?

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28 July 2024 594 6 View

Kaladharan Edavilakathil P

Dear Ali janab, I f you are using anode stripping voltametry, use lead nitrate as standard in working solutions of different concentrations. Regards

Kuppu Samy

Dear Ali ,

You can go with AAS or ICP OES or ICP MS

before that you have to prepare the samples by Acid pH 2

followed By APDC-MIBK Extration and aspired the Solvent content to the AAS or ICP OES or ICP MS with Blank set

ref: APHA 22nd edn 2012