51
Sample Preparation
Hydrofluoric Acid
Hydrofluoric acid (HF) is also used for digestions. It is toxic and extremely
corrosive. Hydrofluoric acid will readily burn skin, and if the fumes are inhaled,
lung tissue. Burns may not be immediately painful or visible. Contact with eyes
could result in blindness.
•
Always wear suitable protective equipment, including goggles, a face shield,
acid-resistant gloves, and protective clothing when using hydrofluoric acid.
•
Do
not
breathe HF vapors. Always work in a fume hood when using
hydrofluoric acid.
•
Do
not
use a glass beaker. Hydrofluoric acid attacks glass.
•
Observe the additional hazards and precautions outlined in References 1, 2, 9,
10 and 11 on page 55.
Performing Digestions
When carrying out sample digestions:
•
Always work in a hood suitable for the type(s) of chemicals you are using.
•
Add very small quantities of the acid dropwise, while observing the magnitude
of the reaction.
•
Apply heat to a digestion solution slowly in case a further vigorous reaction is
initiated.
Before using hydrofluoric acid, you should be thoroughly familiar
with its hazards and safe handling practices.
Observe the
manufacturer's recommendations for use, storage, and disposal.
Avertissement: Avant d'utiliser l'acide fluorhydrique, vous devriez
être familier avec ses dangers et les pratiques de manipulation
sécuritaires.
Respecter les recommandations du fabricant pour
l'utilisation, le stockage et l'élimination.
!
Warning
Содержание AVIO 500
Страница 1: ...AVIO 500 Customer Hardware and Service Guide ICP OPTICAL EMISSION ...
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Страница 3: ...Avio 500 Customer Hardware and Service Guide ...
Страница 12: ...Contents 10 ...
Страница 30: ...28 ...
Страница 31: ...C h a p t e r 1 ...
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Страница 33: ...Safety Practices 1 ...
Страница 58: ...56 Safety Practices ...
Страница 59: ...C h a p t e r 2 ...
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Страница 76: ...74 Preparing Your Laboratory ...
Страница 77: ...C h a p t e r 3 ...
Страница 78: ......
Страница 79: ...System Description 3 ...
Страница 94: ...92 System Description Figure 3 7 GemCone nebulizer and end cap N0680504 also shown in cross sectional view ...
Страница 115: ...C h a p t e r 4 ...
Страница 116: ......
Страница 137: ...135 Installing the Quick Change Adjustable Torch Module 1 2 10 8 9 3 4 7 6 5 ...
Страница 152: ...150 Installation Figure 4 22 Scott Spray Chamber Clip Assembly in Place ...
Страница 195: ...193 Shipping Lists 09290798 USB Cable Table 4 6 Spares Available Continued ...
Страница 196: ...194 Installation ...
Страница 197: ...C h a p t e r 5 ...
Страница 198: ......
Страница 209: ...207 Quick Change Adjustable Torch Module Figure 5 1 Quartz Torch Item Description 1 Plasma Induction Plates 2 Torch 2 1 ...
Страница 217: ...215 Quick Change Adjustable Torch Module 1 2 10 8 9 3 4 7 6 5 ...
Страница 316: ...314 Maintenance ...
Страница 317: ...C h a p t e r 6 ...
Страница 318: ......
Страница 339: ...337 RF Generator Sample Introduction System Troubleshooting Form Figure 6 2 Normal plasma at 3mm position ...
Страница 340: ...338 Troubleshooting Figure 6 3 Rounded Plasma due to sample or air getting around the outside typically subtle air leak ...
Страница 342: ...340 Troubleshooting Figure 6 5 Injector too far forward ...
Страница 343: ...341 RF Generator Sample Introduction System Troubleshooting Form Figure 6 6 No Aux Gas torch may be glowing ...
Страница 344: ...342 Troubleshooting Figure 6 7 Air leak or spray chamber temperature too high ...
Страница 345: ...343 RF Generator Sample Introduction System Troubleshooting Form Figure 6 8 Thin plasma due to leak in plasma gas line ...
Страница 346: ...344 Troubleshooting ...
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