A simple,rapidandreliablegas-diffus

A simple,rapidandreliablegas-diffusion flowinjection(GD-FI)methodforammoniumdeterminationin
buildingmaterialshasbeendeveloped.Itisbasedonleachingammoniumfromagroundsolidsampleinto
an alkalinesolutionwithsubsequentammoniagasgeneration.Ammoniaisthentransportedinanitrogen
streamtotheGDcelloftheFIsystemwhereitisabsorbedintoitsacceptorsolutioncontainingamixtureof
theacid–base indicatorscresolredandthymolblue.Themaximumincreaseintheabsorbanceofthe
acceptorsolutionat580nmisrelatedtotheammoniumconcentrationinthesolidsample.Theproposed
methodischaracterizedbyalinearconcentrationrangeof0.1–5.0 mg NH4 + kg
1, alimitofdetectionof
8 μg NH4 + kg
1 andasamplethroughputof10h
1. Asuccessfulapplicationofthismethodforthedeter-
minationofammoniuminbuildingmaterialssuchasconcrete,cementandsandisreported.

ผลลัพธ์ (ไทย) 1:

ง่าย rapidandreliablegas แพร่ flowinjection(GD-FI) methodforammoniumdeterminationinbuildingmaterialshasbeendeveloped Itisbasedonleachingammoniumfromagroundsolidsampleintoalkalinesolutionwithsubsequentammoniagasgeneration AmmoniaisthentransportedinanitrogenstreamtotheGDcelloftheFIsystemwhereitisabsorbedintoitsacceptorsolutioncontainingamixtureoftheacid – ฐาน indicatorscresolredandthymolblue Themaximumincreaseintheabsorbanceoftheacceptorsolutionat580nmisrelatedtotheammoniumconcentrationinthesolidsample Theproposedmethodischaracterizedbyalinearconcentrationrangeof0.1 – 5.0 มิลลิกรัม NH4 + กก. 1, alimitofdetectionofΜg NH4 + กก. 1 8 andasamplethroughputof10h 1 Asuccessfulapplicationofthismethodforthedeter-minationofammoniuminbuildingmaterialssuchasconcrete, cementandsandisreported

ผลลัพธ์ (ไทย) 2:

ง่าย rapidandreliablegas-แพร่ มก. NH4 + kg 1, alimitofdetectionof 8 ไมโครกรัม NH4 + กก. 1 andasamplethroughputof10h 1

ผลลัพธ์ (ไทย) 3:

ง่าย , rapidandreliablegas การแพร่ flowinjection ( gd-fi ) methodforammoniumdeterminationin
buildingmaterialshasbeendeveloped . itisbasedonleachingammoniumfromagroundsolidsampleinto
เป็น alkalinesolutionwithsubsequentammoniagasgeneration ammoniaisthentransportedinanitrogen streamtothegdcellofthefisystemwhereitisabsorbedintoitsacceptorsolutioncontainingamixtureof

.theacid –ฐาน indicatorscresolredandthymolblue . themaximumincreaseintheabsorbanceofthe

acceptorsolutionat580nmisrelatedtotheammoniumconcentrationinthesolidsample . โดย methodischaracterizedbyalinearconcentrationrangeof0.1 – 5.0 มิลลิกรัมต่อกิโลกรัม
NH4 1 , alimitofdetectionof
8 G μ NH4 กก
1 andasamplethroughputof10h
1 asuccessfulapplicationofthismethodforthedeter -
minationofammoniuminbuildingmaterialssuchasconcrete cementandsandisreported , .