All That Glisters Is Not Gold
Source: Engineer Live (2/10/11)
"X-ray fluorescence analyzers perform instant alloy identification."
The SPECTRO xSORT is a fully portable testing laboratory capable of identifying and analyzing precious metals in a matter of seconds. Battery powered, and with a weight of only 1.7 kg, the xSORT is a small, hand-held instrument that is simply pointed at the sample and takes the measurement in a few seconds at the press of a trigger. It can also can be mounted in a "docking station" to convert it into a convenient bench-top unit.
The SPECTRO MIDEX has become a standard tool in the laboratories of many precious metal refiners and major traders. The MIDEX was designed specifically for the task of accurately analyzing small objects such as jewelry. Samples are placed on an optional motorized, computer controlled sample table and irradiated with an X-ray beam that can be collimated down to a spot size as small as 0.25mm. This gives the instrument the ability to "scan" the sample so that, for example, individual components of a composite jewelry item can be analyzed. Alternatively, measurements can be taken automatically of a large number of "pin" samples.