The sample carrier plate, hanging on a microbalance in a temperature controlled chamber, is swept by a stream of dry nitrogen gas which carries the vaporised molecules of the test substance away. |
The mass concentration by tapered elemental oscillating microbalance was on average slightly lower than mass concentration measured by filter, but there was good agreement. |
Depending on the application, different systems are available, such as a manual or fully automated sampler with an integrated microbalance, thereby expanding the basic instrument. |
The second 1 cm diameter disc cut from each leaf was weighed immediately on an electronic microbalance to the nearest 0.1 mg. |
The flies used in the metabolic rate study were later weighed to the nearest microgram on a microbalance. |
Moreover, the large-volume, all-glass draft shield on this microbalance provides optimal access to the weighing chamber. |