This document describes the features and performance of the SIPS accessory, as well as the precautions to be taken when using it.
The document explains that the Agilent SIPS (Single Injection Pumping System) accessory, introduced in 1994, is a dilution system for flame atomic absorption. It addresses the issue of 'spalling,' where composite pump tubing breaks into particles that can block the nebulizer.
To achieve reliable operation and optimum performance, the text details four key procedures: using only Agilent-supplied SIPS pump tubing, determining the correct arm pressure for each unit, conditioning new or used pump tubes with detergent solutions, and adding Triton X-100 to diluent solutions.
| Introduction Date | December 1994 |
|---|---|
| Recommended Detergent Concentration for Conditioning (New) | 1% solution (mass/volume) of Triton X-100 |
| Recommended Detergent Concentration for Conditioning (Used) | 0.01 % Triton X-100 |
Spalling is a variable effect where very small particles of the composite tube material break away and can stick together to cause blockage of the nebulizer.
The document states that it has been found that very dilute solutions are more likely to induce spalling and block the nebulizer than concentrated solutions.
The procedure need only be repeated if the SIPS unit is repaired or changed, such as upgrading from a SIPS-10 to a dual pump SIPS-20.