GFAAS

Q: How is GFAAS different from ICP-MS?

GFAAS is ideal for targeted, ultra-trace analysis of specific metals , while ICP-MS is better for multi-element screening. GFAAS often offers excellent sensitivity for selected elements with lower complexity.

What Is GFAAS?

GFAAS is a form of atomic absorption spectroscopy in which a small amount of sample is introduced into a graphite furnace and heated through controlled temperature stages. The target element absorbs light at a characteristic wavelength, allowing its concentration to be quantified with high sensitivity.

Compared to flame AAS, GFAAS offers much lower detection limits and requires only very small sample volumes.

What GFAAS Measures

GFAAS is used to quantify:

Trace and ultra-trace metal elements
Heavy metals (e.g., Pb, Cd, As, Hg, Cr, Ni, Cu, Zn)
Metal impurities in high-purity materials
Element-specific concentrations with high accuracy

GFAAS is particularly effective when only a few target elements need to be measured with high sensitivity.

Why Use GFAAS?

GFAAS is chosen when:

target metal concentrations are extremely low
high sensitivity and accuracy are required
sample quantity is limited
element-specific analysis is needed

Typical questions GFAAS can answer:

Are trace metals present above allowable limits?
How do metal impurity levels compare between suppliers?
Did processing introduce metallic contamination?
Are trace metals contributing to performance or reliability issues?

Typical Application Scenarios

Impurity & Trace Metal Analysis

Detection of heavy metal impurities
Verification of high-purity materials
Investigation of contamination sources

Quality Control & Supplier Qualification

Incoming material inspection
Batch-to-batch consistency verification
Long-term impurity monitoring

Materials & Product Testing

Metals content in polymers, coatings, and chemicals
Evaluation of metal leaching or migration
Support for product qualification

Failure Analysis

Identification of trace metal contributors to corrosion or degradation
Comparison of “good vs. failed” materials
Root-cause analysis involving metallic contaminants

Sample Types

GFAAS can be applied to:

solid materials (after appropriate digestion)
liquids and solutions
polymers, resins, and coatings
chemicals and consumer products

Sample preparation typically involves acid digestion to bring metals into solution before analysis.

What You Will Receive

Each GFAAS project is delivered with a clear, structured report suitable for engineering and quality decisions. A typical deliverable includes:

test objective and sample description
sample preparation and digestion method
instrument conditions and calibration approach
quantitative metal concentration results
comparison summaries (batch vs. batch, supplier vs. supplier)
interpretation of results and their relevance to application requirements
recommendations for follow-up testing if needed

Why Choose Xinbodi for GFAAS?

High sensitivity for ultra-trace metal detection
Accurate, element-specific quantification
Experience with complex material matrices
Clear interpretation beyond numerical results
Support for R&D, QC, and failure investigations
Confidential handling of proprietary materials and data