Kamyar Amirhosseini

14 Questions 25 Answers 0 Followers

Questions related from Kamyar Amirhosseini

To which taxonomic levels do different approaches allow for prokaryotic identification?

I need to know to which taxonomic levels (from phylum to species) the following approaches allow prokaryote identification: a) morphology-based approaches b) chemotaxonomy c) GC content d)...

24 January 2024 4,389 6 View

How to prepare soil samples for microplastics exposure treatments?

In research where the objective is to study the impact of microplastics on soil properties, is it necessary to evaluate the original microplastic concentration of the test soils? If the soils...

28 November 2023 205 8 View

What biofilm carriers are commonly made of?

I am planning to cultivate algae-bacteria biofilms under greenhouse conditions using biofilm carriers. I have routinely come across Industrial Soft Carriers as frequently used substrates for...

07 June 2023 2,831 1 View

What percentage of library matches are generally acceptable in microplastics analysis?

I recently ran an FTIR analysis to identify two unknown microplastics. The result indicates a matching percentage of over 50% with polyethylene for both particles. However, I wonder if these...

15 May 2022 1,542 5 View

Could the origin or source of microplastics be determined by their physical characteristics or shape?

This might be a long shot, but a while ago I read an article that provided detailed information on how the physical characteristics of microplastics (more precisely, the shape of particles) could...

28 March 2022 10,013 5 View

Will microplastics extraction be compromised if depth filters are used instead of surface (membrane) filters?

Normal Ashless quantitive filter papers from CHMLAB are readily available for me to purchase. However, I understand that using depth filters may compromise microplastics extraction processes as...

25 December 2021 3,520 5 View

How to calculate the amount (in grams) of NaCl required for 600 ml of saturated salt solution with density 1.2 g/cm3 ?

Any help is appreciated.

13 November 2021 470 11 View

How does stability of organic acids differ in most soils?

I recently read in a review article that oxalate is the most stable organic acid in calcareous soil which is due to the formation of ca-oxalate reducing its biodegradability. does this notion hold...

29 December 2020 6,155 3 View

Why does MgCl2 solution displays less conductivity than NaCl at constant ionic strength ?

This question is related to the application of EC in estimating the Ionic strength of a solution. But I have difficulties interpreting the difference between MgCl2 and NaCl curve. Any help is...

15 December 2020 5,826 3 View

Does CEC have an effect on the type of cations adsorbed?

I came across a confusing concept in a reference and was wondering wether increasing CEC, increases the preference of adsorb sites to bind with cations with higher valence ? For example divalents...

03 March 2020 3,793 3 View

CHMLAB ashless quantitative filter paper.

I am currently working on Microplastics pollution in farmlands and I have stumbled upon CHMLAB filter papers. Since I am not familiar with the lab products, I was wondering if anyone could provide...

01 January 1970 4,711 2 View

Describing microplastics degradation mechanism via biological processes.

Hello everyone! I was recently asked a question on whether biodegradation of microplastics into smaller plastic particles (e.g. nanoplastics) by microbial communities actually increases the...

01 January 1970 9,255 2 View

Preparing plastic-free soil samples for use in ecological studies of microplastics?

I have recently come across multiple articles in which the authors state that they have used soils from farms free of plastic use history. They further confirm this by conducting polymer...

01 January 1970 8,480 1 View

Addressed to researchers in microplastics: Share your thoughts on the 'Microplastic pollutants' book

Dear researchers, I have benefited from the book titled 'Microplastic pollutants' by Crawford and Quinn (link below) during my studies on the effects of MPs on the soil environment. I have...

01 January 1970 5,343 1 View