The ACE C18-PFP is a unique C18 bonded HPLC column with the extra selectivity of a pentafluorophenyl (PFP) phase. The use of an ultra pure, ultra inert silica has many recognised benefits ...

Also, you can do the same number of analyses with less instruments and solvents. The MicroSpher C18 HPLC column offers an HPLC column capable of very fast separation.

The sample is first dissolved in a solvent, then forced to flow through a chromatographic column under high pressure. Within the column, the mixture is resolved into its component parts. Individual ...

If the numbers are too high or too difficult to subtract in your head, write them down in columns. Separate the numbers into ones, tens, hundreds and thousands. List the numbers in a column and ...

The victory of the Roman emperor Trajan over the Dacians in back-to-back wars is carved in numerous scenes that spiral around a 126-foot marble pillar in Rome known as Trajan’s Column.

There's much to enjoy about the retirement years - and you don't need a million dollars to do so. Photo / 123rf Q: I quit my job to look after my terminally ill husband. I am 62 years old. We have ...

It’s also told in 155 scenes carved in a spiral frieze on a monumental column. In back-to-back wars fought between A.D. 101 and 106, the emperor Trajan mustered tens of thousands of Roman troops ...