Vials for analysis of beer

[miquelet]

Hi everybody,

We are looking for a supplier of vials to analyse sulphur in beer using a Purge&Trap-GC-SCD system. We wonder if it is important to use topaz vials instead of the transparent ones. Any idea?

Thanks in advance.

[Peter Apps]

One of the classic beer off-flavours is caused by UV light, so you probably should use amber glass throughout the process.

Peter