Page 259 - Analytical method for food addtives

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9
refrigerator. Filter through glass fibre filter with KCl wash
M NaOH, using phenolphthalein
solution. Place glass fibre filter and precipitate in beaker
and wash with water. Heat solution to boiling point and
alcohol to filtrate. Cool on ice bath. Stand overnight in
Add tartaric acid solution followed by CH 3 COOH and
titrate while hot with 0.1
NaOH using phenolphthalein and add
for 10 min, filter and transfer filtrate
Shake, add 2 % HCl and KCl. Stand
5.2 mL in excess. Dilute to volume
vigorously then 2 % Na 2 C 2 O 4 soln.
M
M NaOH, add 7 Decant onto filter paper in Buchner funnel. Wash precipitate 3 times with alcoholic KOH solution. Transfer precipitate and filter paper to beaker, wash Buchner with hot water, heat to boiling point and titrate hot solution M NaOH with 0.1 E334–7, E354: L-tartaric acid and its salts 171
Neutralise with 1 tartaric acid, acetic acid and KCl. Add alcohol, stir until precipitate forms and refrigerate for 15 H Add hot water to sample shaking to vol flask. Neutralise with 1 with water. Stand and filter Bitartrate method
Fruits and fruit

Wines Cheese products

Titration Titration Titration