test nicotine content

[ragjoy]

is there a relatively simple way to test nicotine content of a premixed juice.
i buy a well-known custard pre-mix juice and my first 500ml of 2 orders, the week before last week was very light in colour, this was changed for another which has arrived today and is equally light, the initial light one still has hardly changed in colour after at least 2 weeks steeping.
these are all kept in a cold fridge (my beer fridge).
im not a great one for strong flavours, never have been as many over strong flavours give me blinding headaches.
i mix this pre-mix with an equal nic strength, non-flavoured mix and this gives me my ideal juice.
my problem im not certain I can trust the nic strength of 16mg so ideally id like to test it for strength.
generally i rebatch 300ml of this to create 600ml at a time, so dont really want to waste time and money batching up a mix thats far too weak for me.
ive no reason other than the light colour and the initial one still having still hardly changed in colour, to make me think its low on nic, all other juice from the same place as been a chalk and cheese difference in colour of these two batches, bearing in mind there was a third batch in between these that looks as others have in the past.
just to clarify batch 1 light, batch 2 normal and batch 3 light, batches 1 and 2 were 2 days apart.
is this possible to test the nic strength?.

[dalealan]

May 24, 2017 20:10:05 GMT ragjoy said:

is there a relatively simple way to test nicotine content of a premixed juice.
i buy a well-known custard pre-mix juice and my first 500ml of 2 orders, the week before last week was very light in colour, this was changed for another which has arrived today and is equally light, the initial light one still has hardly changed in colour after at least 2 weeks steeping.
these are all kept in a cold fridge (my beer fridge).
im not a great one for strong flavours, never have been as many over strong flavours give me blinding headaches.
i mix this pre-mix with an equal nic strength, non-flavoured mix and this gives me my ideal juice.
my problem im not certain I can trust the nic strength of 16mg so ideally id like to test it for strength.
generally i rebatch 300ml of this to create 600ml at a time, so dont really want to waste time and money batching up a mix thats far too weak for me.
ive no reason other than the light colour and the initial one still having still hardly changed in colour, to make me think its low on nic, all other juice from the same place as been a chalk and cheese difference in colour of these two batches, bearing in mind there was a third batch in between these that looks as others have in the past.
just to clarify batch 1 light, batch 2 normal and batch 3 light, batches 1 and 2 were 2 days apart.
is this possible to test the nic strength?.

Nicotine shouldn't make any difference to the colour at all it's all down to steep time for custards. Plus they may have messed about with the recipe and changed a constituent of it. 

[Postmodern Smoking]

There's a relatively simple nic test kit that used to be available (I haven't done a recent search to see whether anyone still stocks it).... the problem is however, once mixed with flavouring, the flavouring can alter the pH which is part of the basis of the simple nic test.... resulting in potentially inaccurate results.

[ragjoy]

May 24, 2017 20:22:13 GMT dalealan said:

May 24, 2017 20:10:05 GMT ragjoy said:

is there a relatively simple way to test nicotine content of a premixed juice.
i buy a well-known custard pre-mix juice and my first 500ml of 2 orders, the week before last week was very light in colour, this was changed for another which has arrived today and is equally light, the initial light one still has hardly changed in colour after at least 2 weeks steeping.
these are all kept in a cold fridge (my beer fridge).
im not a great one for strong flavours, never have been as many over strong flavours give me blinding headaches.
i mix this pre-mix with an equal nic strength, non-flavoured mix and this gives me my ideal juice.
my problem im not certain I can trust the nic strength of 16mg so ideally id like to test it for strength.
generally i rebatch 300ml of this to create 600ml at a time, so dont really want to waste time and money batching up a mix thats far too weak for me.
ive no reason other than the light colour and the initial one still having still hardly changed in colour, to make me think its low on nic, all other juice from the same place as been a chalk and cheese difference in colour of these two batches, bearing in mind there was a third batch in between these that looks as others have in the past.
just to clarify batch 1 light, batch 2 normal and batch 3 light, batches 1 and 2 were 2 days apart.
is this possible to test the nic strength?.

Nicotine shouldn't make any difference to the colour at all it's all down to steep time for custards. Plus they may have messed about with the recipe and changed a constituent of it. 

thanks dalean, i dont know enough to disagree but the mix has always been amber-ish and these 2 batches are near clear, to make it more confusing theres a normal colour batch in the middle, these were ordered 2 days apart.
why would they mess with such a successful recipe?

[ragjoy]

May 24, 2017 20:23:41 GMT Postmodern Smoking said:

There's a relatively simple nic test kit that used to be available (I haven't done a recent search to see whether anyone still stocks it).... the problem is however, once mixed with flavouring, the flavouring can alter the pH which is part of the basis of the simple nic test.... resulting in potentially inaccurate results.

thanks dave, i will look it up.

[dalealan]

May 24, 2017 20:45:49 GMT ragjoy said:

May 24, 2017 20:22:13 GMT dalealan said:

Nicotine shouldn't make any difference to the colour at all it's all down to steep time for custards. Plus they may have messed about with the recipe and changed a constituent of it. 

thanks dalean, i dont know enough to disagree but the mix has always been amber-ish and these 2 batches are near clear, to make it more confusing theres a normal colour batch in the middle, these were ordered 2 days apart.
why would they mess with such a successful recipe?

They mightn't have but they could have changed one of the ingredients from diacetyl etc like others have done in the past. more than likely they've just sent you a slightly older batch which has been steeping longer. Some Custards can go a really dark brown if they're left steeping long enough. 

[ragjoy]

right is batch 10th may, left is batch 12th may the replacement batch looks the same as 10th may batch.

[Postmodern Smoking]

May 24, 2017 20:48:45 GMT ragjoy said:

May 24, 2017 20:23:41 GMT Postmodern Smoking said:

There's a relatively simple nic test kit that used to be available (I haven't done a recent search to see whether anyone still stocks it).... the problem is however, once mixed with flavouring, the flavouring can alter the pH which is part of the basis of the simple nic test.... resulting in potentially inaccurate results.

thanks dave, i will look it up.

HERE's the procedure and chemicals, etc. required.

Puffin used to sell as a kit, but is showing out of stock.

[dalealan]

Tagging MrDJ scroll down the thread for his post on POTV

www.planetofthevapes.co.uk/forums/ecig-discussion/everything-ecigs/threads/dragons-rise-campfire-custard.106366/

[ragjoy]

thank you, i just would like to try to reassure myself.
id just like to say that dragons rise have acted great with my issue and replaced it, no problems.

[Perpetua]

smifee has nic testing equipment . . . . perhaps if you PM him ragjoy, he might be kind enough to help out. Although as Dave says with flavour added the results could be skewed.

Steeping in a fridge, will always take longer as the cool temperatures slow down the oxidization process - which is why we all store base supplies in the freezer/fridge/coldest place possible to inhibit that. You would get a better idea leaving these mixes just in a cupboard for a few weeks before refrigerating them.  

That said, I have seen numerous quality control concerns from this particular source . . . . . .

[tim]

Pure nicotine is colourless, ie clear. As it reacts with oxygen, it darkens. The clearer it is, the fresher.

HTH

BTW, nice table ragjoy

[ragjoy]

May 24, 2017 21:56:41 GMT Perpetua said:

smifee has nic testing equipment . . . . perhaps if you PM him ragjoy, he might be kind enough to help out. Although as Dave says with flavour added the results could be skewed.

Steeping in a fridge, will always take longer as the cool temperatures slow down the oxidization process - which is why we all store base supplies in the freezer/fridge/coldest place possible to inhibit that. You would get a better idea leaving these mixes just in a cupboard for a few weeks before refrigerating them.  

That said, I have seen numerous quality control concerns from this particular source . . . . . .

hi mandy, thanks for the help.
i will give smifee a pm tomorrow bit as you say, not sure it will give a true reading.
im in no hurry to use these batches, it was just a last week of normal buying panic buy, which i didnt really need to do.
i will pull a couple of bottles out and leave them in my dark vape draw and see what happens, i just try to prolong the juices life in the fridge.

hope your all good mandy x

[ragjoy]

May 24, 2017 21:59:33 GMT tim said:

Pure nicotine is colourless, ie clear. As it reacts with oxygen, it darkens. The clearer it is, the fresher.

HTH

BTW, nice table ragjoy

hi tim, thanks for that, it was the middle batch being dark that threw me as much as anything, if it was the first one then fine but the middle one being much older juice just confused it all.

the table as you probably know is ercol, its a hobby of mine i hand strip them from very dark to there natural state, then refinish to preserve.
tables, arm chairs, dressers etc etc, i have quite a collection now, it is becoming very sought after.

[Perpetua]

May 24, 2017 22:13:48 GMT ragjoy said:

May 24, 2017 21:56:41 GMT Perpetua said:

smifee has nic testing equipment . . . . perhaps if you PM him ragjoy , he might be kind enough to help out. Although as Dave says with flavour added the results could be skewed.

Steeping in a fridge, will always take longer as the cool temperatures slow down the oxidization process - which is why we all store base supplies in the freezer/fridge/coldest place possible to inhibit that. You would get a better idea leaving these mixes just in a cupboard for a few weeks before refrigerating them.  

That said, I have seen numerous quality control concerns from this particular source . . . . . .

hi mandy, thanks for the help.
i will give smifee a pm tomorrow bit as you say, not sure it will give a true reading.
im in no hurry to use these batches, it was just a last week of normal buying panic buy, which i didnt really need to do.
i will pull a couple of bottles out and leave them in my dark vape draw and see what happens, i just try to prolong the juices life in the fridge.

hope your all good mandy x

Which you will Raggy, but don't expect much of a colour change over a short space of time in the fridge . . . . it will take much longer under those conditions. If you want to preserve them even longer, then decant into glass bottles - preferably amber.

( I've a 100ml bottle of that custard, 12mg - which has been just in the cupboard for over a year now and it's a mid amber colour. )

I'm good thank you, spent too much money in the sales . . . . so nothing changes!

Hope all is well with you and yours. xxx


PS. I've an Ercol table and chairs bought in a local second hand shop - the wood looks ever so similar to yours!