The elution system automatically changes elution reservoirs and controls the liquid level above the resin bed.
The fraction collector allows collection in constant time, constant volume and constant number of drops modes and is especially convenient for ion exchange column developmental work.
It has become increasingly clear that these radiometric dating techniques agree with each other and as a whole, present a coherent picture in which the Earth was created a very long time ago.
The Greeks consider the first Olympic Games as the beginning or 776 BC.
The Muslims count the Prophet’s departure from Mecca, or the Hegira, as their beginning at AD 662.
There are two techniques for dating in archaeological sites: relative and absolute dating.
Relative dating stems from the idea that something is younger or older relative to something else.
Uptake of carbon dioxide by the oceans is not a harmful phenomenon , but excess of it leads to a reduction in p H thereby altering the fundamental seawater chemistry, commonly known as ocean acidification ....