Comments on: Measuring the Content of Vitamin C in Fruit Juice https://snabbiology.co.uk/measuring-the-content-of-vitamin-c-in-fruit-juice/ All 18 Core Practicals Wed, 27 Nov 2019 16:57:33 +0000 hourly 1 https://wordpress.org/?v=6.5.3 By: Jose Luis https://snabbiology.co.uk/measuring-the-content-of-vitamin-c-in-fruit-juice/#comment-7 Mon, 21 Jan 2019 19:12:38 +0000 https://snabbiology.wordpress.com/?p=247#comment-7 In reply to Alice Quinnell Richards.

You should stop it when it turns colourless

]]> By: Alice Quinnell Richards https://snabbiology.co.uk/measuring-the-content-of-vitamin-c-in-fruit-juice/#comment-6 Mon, 21 Jan 2019 17:58:16 +0000 https://snabbiology.wordpress.com/?p=247#comment-6 In reply to Jose Luis.

I have the same problem as you. the DCPIP solution goes from blue to pink and then to the colour of the juice I am using. is that when I should stop it?

]]> By: Jose Luis https://snabbiology.co.uk/measuring-the-content-of-vitamin-c-in-fruit-juice/#comment-5 Sun, 10 Jun 2018 23:51:22 +0000 https://snabbiology.wordpress.com/?p=247#comment-5 I’ve tried to do this experiment (version 1) and I don’t know where should I stop the reaction. In some cases, I get a violet colour in the DCPIP with the fruit juice and I don’t know if I should stop the reaction there or if I should still adding drops of the fruit juice until it becomes transparent.

Also, I usually have to put very small amounts of fruit juice (in most cases less than 1 ml) and I don’t know if this is expected to happen.

I would appreciate it if you could help me with your reply. Thank you.

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