Key facts
- Brand
- The
- Model
- GTA-95
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-12
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Agilent Technologies GTA-95 Application Note for Trace Metal Determination in Engine Oil
The document describes a method for analyzing trace metals in engine oil samples dissolved in diisobutylketone (DISK). It highlights the advantages of electrothermal atomization over flame methods and addresses specific challenges with volatile elements like lead.
A key focus is the use of a pyrolytic graphite platform to prevent the loss of lead during ashing, which occurs when samples are dispensed directly onto the tube wall. The note provides instrumental requirements, standard preparation guidelines, and detailed temperature programs for determining lead using this platform.
The GTA-95 specifications
| Analyzable Elements | Al, Cr, Cu, Ni, Pb and V |
|---|---|
| Solvent for Dilution | diisobutylketone (DISK) |
| Instrument Model | Agilent GTA-95 |
Source: Agilent Technologies GTA-95 Application Note for Trace Metal Determination in Engine Oil
All The GTA-95 documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
How is lead loss during ashing prevented?
Lead loss is overcome by using a Pyrolytic Graphite Platform inserted into the furnace, which allows direct determination without lengthy acid digestion.
From: Agilent Technologies GTA-95 Application Note for Trace Metal Determination in Engine Oil
What is the maximum sample volume for lead determination using the platform?
The pyrolytic graphite platform can reproducibly accommodate up to 40 µL of diluted sample.
From: Agilent Technologies GTA-95 Application Note for Trace Metal Determination in Engine Oil
What are the main benefits of using a graphite platform in AAS?
The technique reduces chemical and background interferences by delaying sample vaporization, which discourages volatile compound formation and increases dissociation of molecular species.
From: Agilent Graphite Furnace AAS Platform Application Note
How does the graphite platform affect MgO analysis?
It minimizes the build-up of refractory MgO flakes on the tube ends, allowing for long-term stability without frequent cleaning compared to wall atomization.
From: Agilent Graphite Furnace AAS Platform Application Note