Ní mór imoibreáin I agus II a choinneáil i bhflaigíní gloine donna agus ní fhanann siad cobhsaí ach ar feadh 141á, tuairim.
Reagents I and II must be kept in brown glass flasks and are only stable for approximately 14 days.
Tar éis é a dhriogadh ar feadh 6 huaire a chloig, doirtear toilleadh an scarthóra isteach i bhflaigín scartha 200 ml, agus rinseáiltear an scarthóir agus an comhdhlúthadán le 60 ml de chicliheacsán agus ansin le 60 ml uisce.
After distilling for 6 hours, the contents of the separator are poured into the 200 ml. separating funnel, and the separator and the condenser are rinsed with 60 ml. of cyclohexane and then with 60 ml. of water.
Déan aonchineálach le 150 ml de 50% de mheatánól (4.5) i bhflaigín cónúil (5.3) agus coigeartaigh an pH go dtí idir 8.1 agus 8.2 le 400 mg tuairim de tris (hiodrocsai).
Homogenise with 150 ml of 50% mehtanol (4.5) in a conical flask (5.3) and adjust the pH to 8.1 to 8.2 with about 400 mg of tris (hydroxymethyl) aminomethane (4.7).
Flaigín driogtha 2 lítear le scarthóir modhnaithe de chineál Clavenger mar a thaispeántar sa léaráid i gCuid III agus comhdhlúthadán aife fuaraithe.
A 2 litre distillation flask with a modified Clevenger-type separator as shown in the diagram in Part III and a cooled reflux condenser.
Bailigh 50 ml den tsruthláit i bhflaigín grádaithe, cuir 30 mi d'uisce leis agus measc.
Collect 50 ml of the eluate in a graduated flask, add 30 ml of water and mix.
a laboratory flask primarily intended for the preparation of definite, fixed volumes of solutions, and therefore calibrated for a single volume only
Líon an flaigín tortomhaiseach suas go dtí an marc le huisce (tiúchan HCl thart ar 0.5 N).
Fill the volumetric flask up to the mark with water (HC1 concentration about 0.5 N).
Má bhíonn sé riachtanach chun a thiúchan a thabhairt go réimse laistigh de na tuaslagáin chalabraithe, féadfar slánchuid a phipéadú isteach i bhflaigín tortomhaiseach 100 ml agus a líonadh suas go dtí an marc le haigéad hidreaclórach 0.5N (3.3).
If necessary to bring its concentration within the range of the calibration solutions, an aliquot portion may be pipetted into a 100 ml volumetric flask and made up to the mark with 0.5 N hydrochloric acid (3.3).