7/26/2019 Step by Step Measuring Ash of Sample

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Step By Step Measuring Ash of Sample (Direct Method)

Crucible must be at constant weight and marked, must be in oven about 1

hour

Place in the dessicator about 5 Minutes

Measure The weight Using Analytical Balances Place the samle about ! grams and lace inside the crucible

"vaorate the organic material using hotlate in the smoke chamber until the

smoke gone

Moved into the mu#e $urnace, heat u at %&&oC about ! hours

Place the crucible with the samle in the oven and wait about 1 hour

Place the crucible in the dessicator and wait about 5 minutes

Measure the weight until constant

Measuring Protein Of Sample (Mikrokjeldahl) Measure 1&&mg samle ' &() gram catalyst n the *lter aer and wra it

Place into the k+eldahl bottle

Add ml concentrated sul$uric acid and burn in the hotlate till the li-uid turn

clear .it takes about !/ hours0 in the smoke room

et it be cooled

Add a-uadest about 1&ml and distillated using 2a34/2aThio .2a34/2a!!30

Place the 6ask as the accommodate o$ the distillation and insert 5ml Boric

acid 78 and add !/ dros o9 BC:/M; indicator

A$ter got the distillation, titrate using &(&! 2 4C until the color o$ solution

turn into ink

Measuring Fat ontent of Sample (So!hlet) Measure about ! gram o$ samle and wra it on the thimble .*lter aer0,

measure the e