These collapsible cups are designed to support the powder while it is under load within the die. The aluminium deforms with the sample and results in a strong, supportive backing for the finished pellet. These cups are available in different sizes and starting shapes.
These additives contain different compositions of starch/cellulose or boric acid and are effective in binding powders together during compression. They are mixed with the sample powders during the milling/homogenising process to ensure a thorough blend prior to pelletising. The low-Z elements used in these binders ensure that they are not detected by the XRF instrument
Some powdered sample materials exhibit tendencies to adhere to the pellet die surface during the briquetting operation. This condition frequently results in repeated attempts to form a satisfactory sample briquette with increasing potential threats of cross contamination and elaborate time consuming clean ups. A novel approach to resolving this problem is by using SpectroPellet® Film in pre-cut circles. Available in 32, 35, and 40 mm sizes.