Tal Cohen

6 Questions 6 Answers 0 Followers

Questions related from Tal Cohen

What is the fate of EDTA in planta?

When plants take up foliar-applied metal-EDTA chelates, they can absorb and metabolise the metal. However, I cannot find any literature or resources that discuss the fate of the EDTA compound. Is...

22 November 2022 1,053 4 View

Why does my potassium glycinate solution smell of ammonia?

I am trying to make a 3 M potassium glycinate solution using equimolar amounts of KOH and glycine. However, my pH ends up too high (~13) and the solution smells of ammonia, indicating that the...

25 August 2020 2,940 4 View

Does sulfuric acid hydrolysis of peptides only use the acid's first acidity?

I am investigating peptide hydrolysis, and I have read that sulfuric acid, although a diprotic acid, does not use its second acidity when hydrolysing peptide bonds. Why is this?

11 July 2019 4,035 4 View

What volatile sulfur compound is produced when KOH hydrolyses keratin, and is then neutralised?

I am hydrolysing hair (keratin) in dilute KOH solution. Once this has been adequately hydrolysed, I neutralised the solution using sulfuric acid (H2SO4) and there was a very strong sulfur smell...

05 June 2019 9,757 0 View

Is slashing and mulching of Asparagus leaves at the end of the growing season more efficient than allowing nutrient translocation to take place?

In Australia, commercial asparagus farms cut back vegetative growth and mulch it into the soil at the end of the growing season in order to return the nutrients in these plant parts to the soil....

20 November 2017 1,088 3 View

Which statistical model(s) is this paper using?

Differential tolerance to metals among populations of the introduced bryozoan Bugula neritina (Piola and Johnston 2006) I have been asked to review this paper and comment on the statistical models...

17 August 2017 9,243 3 View