Agilent Technologies VGA 77 - Page 5

Contents
Agilent Vapor Generation Accessory VGA 77 and VGA 77P User’s Guide 5
Factors Affecting the Formation of Hydrides 57
Acid Concentration 57
Oxidation State 57
Interferences 58
Contamination 59
Memory Effects 59
Background Absorption (AA only) 59
Laboratory Procedures 60
General 60
Standards 61
Reductant—Sodium Borohydride 61
Pump Tubing 61
Sources (AA only) 62
Basic Methods 62
Antimony 62
Arsenic 63
Bismuth 64
Mercury 64
Selenium 66
Tellurium 67
Tin 68
Additional Notes 69
References 69
Additional References 69
6. Maintenance and Spare Parts 71
Cleaning Procedures 71
General 71
Absorption Cell 72