SpectrEcology

Low head space Sub-Micro cells are designed for thermal melt. The low head space cells hold volumes ranging from 10?l to 160?l while retaining standard exterior dimensions. The entrance to the sample compartment is hemispherical, being designed without sharp corners to eliminate potential loss of sample due to capillary action. Cells are supplied with a special PTFE stopper. The liquid tight stopper reduces the volume of air by 95% over the volume of the sub-micro cells on the previous page. The sample compartment in the Sub-Micro range of cells optimizes the alignment of the sample for maximum sensitivity in the spectrophotometer. The sample is easily inserted into and retrieved from the cell, by careful use of a pipette. The correct 'Z' dimension needs to be selected for this range, typically 8.5, 15 or 20mm. The amount of sample required to fill the sample chamber is reduced to an absolute minimum, typically fifteen to twenty per cent greater than the absolute sample chamber volume.

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