What does this research mean for the field?

A hydrofluoric acid-free method for determining impurity elements in recycled carbon fibers is safer and more effective than traditional HF-added methods. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop a method for determining impurity elements in recycled carbon fibers without using hydrofluoric acid.

March 7, 2026Analytical SciencesOpen Access

A simple hydrofluoric acid-free pressurized-cavity microwave-assisted acid digestion method for determination of impurity elements in recycled carbon fibers with ICP-MS

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To develop a method for determining impurity elements in recycled carbon fibers without using hydrofluoric acid.
Developed a hydrofluoric acid-free method for acid digestion.
Used pressurized-cavity microwave-assisted digestion at 280 °C.
Compared results with a traditional HF-added method for validation.
Analyzed certified reference materials for method validation.
Successfully determined 13 impurity elements in recycled carbon fibers.
Limits of detection ranged from 0.0014 mg/kg for cobalt to 0.72 mg/kg for potassium.
Ten elements had lower detection limits than the HF-added method, reducing contamination risk.
Upper limit for titanium was 890 mg/kg due to limited decomposition of refractory compounds.

Authors

TNTetsuya NakazatoNational Institute of Advanced Industrial Science and Technology YMYoshiki MakinoNational Institute of Advanced Industrial Science and Technology

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Implication

A method analyzes impurity elements in recycled carbon fibers, indicating a safer and simpler alternative to traditional techniques.

Cite This Study

Nakazato et al. (2026) studied this question.

synapsesocial.com/papers/69abc2855af8044f7a4ec253 https://doi.org/10.1007/s44211-026-00886-1

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A simple hydrofluoric acid-free pressurized-cavity microwave-assisted acid digestion method for determination of impurity elements in recycled carbon fibers with ICP-MS

Key Points

Discussion

Implication

Cite This Study

A simple hydrofluoric acid-free pressurized-cavity microwave-assisted acid digestion method for determination of impurity elements in recycled carbon fibers with ICP-MS

Key Points

Discussion

Implication

Cite This Study

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