How do you detect presence of nickel in chocolates?

Answer 1

v Take a small piece of the chocolate and crush it into fine powder. Put it into a test tube and add a little hydrochloric acid .

v Add some water and boil it till the chocolate melts to form a solution.

v To the solutions obtained, add ammonium chloride and ammonium hydroxide.

v Now take a little amount of the solution and pass hydrogen sulphide gas through it using kipp's apparatus . Formation of a black colour indicates the presence of group four cations.

v Now to the filtrate, add small amount of dimethyl glyxime. If a rose red coloured precipitate is obtained in a scarlet red solution, then presence of Nickel (Ni2+) is confirmed.

Answer 2

v Take a small piece of the chocolate and crush it into fine powder. Put it into a test tube and add a little hydrochloric acid .

v Add some water and boil it till the chocolate melts to form a solution.

v To the solutions obtained, add ammonium chloride and ammonium hydroxide.

v Now take a little amount of the solution and pass hydrogen sulphide gas through it using kipp's apparatus . Formation of a black colour indicates the presence of group four cations.

v Now to the filtrate, add small amount of dimethyl glyxime. If a rose red coloured precipitate is obtained in a scarlet red solution, then presence of Nickel (Ni2+) is confirmed.

By sameer

Answer 3

To detect the presence of nickel in chocolates, one common method is atomic absorption spectroscopy (AAS). This technique involves measuring the absorption of light by nickel atoms in the sample. Another method is inductively coupled plasma mass spectrometry (ICP-MS), which can provide highly sensitive and accurate measurements of nickel levels. Both of these methods require specialized equipment and trained personnel to perform the analysis.

Answer 4

Oh, dude, detecting nickel in chocolates? Sounds like a job for... science! You could use a technique called atomic absorption spectroscopy or maybe even inductively coupled plasma mass spectrometry. But like, who really needs to worry about nickel in their chocolates anyway? Just eat them and enjoy, man.

Answer 5

Oh, sweet tooth with a side of detective work, huh? Well, to detect nickel in chocolates, you can use a nickel test strip specifically designed for food testing. Simply swipe the strip on the chocolate surface, and if it changes color, congratulations, you've got yourself some nickel in that sweet treat. Just remember, finding nickel in your chocolate doesn't make it a golden ticket, so proceed with caution, Willy Wonka.

Answer 6

I Think yes