Division 4 REAGENTSF1
United Kingdom
- 4.1.
Anhydrous pyridine, for chromatography quality.
- 4.2.
Hexamethyl disilazane of analytical quality.
- 4.3.
Trimethylchlorosilane of analytical quality.
- 4.4.
Sample solutions of sterol trimethylsilyl ethers. To be prepared at the time of use from sterols and erythrodiol obtained from oils containing them.
- 4.5.
Standard solutions of trimethylsilyl ethers of aliphatic alcohols from C20 to C28. They may be prepared from mixtures of pure alcohols at the time they are required for use.
- 4.6.
Carrier gas: hydrogen or helium, gas-chromatographic purity.
- 4.7.
Auxiliary gases: hydrogen, helium, nitrogen and air, of gas-chromatographic purity.
- 4.8.
Silylation reagent, consisting of a 9:3:1 (V/V/V) mixture of pyridine/hexamethyl disilazane/trimethylchlorosilane.
- 4.9.
n-Hexane, for chromatography quality.