Order Code	Product Name
L-09-02-M02	PFA Screw Cap Vial for Ultra-Trace Mineral Analysis | Mining Laboratory Consumables

PFA Screw Cap Vial for Ultra-Trace Mineral Analysis

Brief Introduction

PFA Screw Cap Vials are high-purity fluoropolymer sample containment consumables designed for ultra-trace elemental analysis and advanced mineral laboratory workflows. Manufactured from premium PFA material, these vials provide ultra-low metal ion leaching, excellent chemical inertness and outstanding thermal stability. Available in multiple capacities and U-shaped, V-shaped or flat inner bottom designs, they support reliable sample recovery and contamination-controlled storage for mineral analysis, geochemical testing and hydrometallurgical laboratory applications.

Application Scope

PFA Screw Cap Vials are widely used in mining laboratories, metallurgical testing facilities and geochemical research environments for mineral sample preparation, acid digestion, dilution and high-purity solution storage. They are suitable for handling corrosive solutions including hydrofluoric acid and aqua regia during trace elemental analysis workflows.

These vials support ICP-MS and ICP-OES sample preparation procedures by maintaining sample integrity and reducing contamination risks. They are also applicable for hydrometallurgical solution analysis, geological dissolution experiments and other precision testing processes requiring reliable ultra-clean sample containment.

Features

Ultra-Low Background Purity Ensures Testing Accuracy

Manufactured from high-purity PFA fluoropolymer, the vials provide extremely low metal ion leaching performance and minimize background contamination during sample storage and digestion. The stable chemical properties help maintain reliable sample composition for ppt-level trace elemental analysis and repeatable laboratory results.

Extreme Chemical and Temperature Stability Improves Reliability

With temperature resistance from -200°C to +260°C, PFA Screw Cap Vials maintain structural stability during high-temperature acid digestion and low-temperature sample preservation. The chemically inert material withstands strong corrosive chemicals including concentrated HF and aqua regia, supporting long-term laboratory operation.

Optimized Bottom Design Improves Sample Recovery

Available U-shaped, V-shaped and flat inner bottom configurations provide flexible options for different sample volumes and analytical requirements. The optimized internal design helps reduce sample residue, improve recovery of valuable micro samples and support efficient mineral sample preparation workflows.

Precision Screw Cap Design Supports Contamination-Controlled Storage

The liner-free precision threaded screw cap provides secure sealing performance and reduces leakage risks during sample handling and storage. The hydrophobic non-stick inner surface minimizes residue adhesion, simplifying cleaning procedures and improving laboratory workflow efficiency.

Durable Reusable Performance Reduces Operating Costs

The unbreakable and chemically stable PFA structure supports repeated cleaning and cyclic laboratory use. Its long service life reduces replacement frequency and helps lower consumable costs for high-frequency trace analysis applications.

Specification

Product Name: PFA Screw Cap Vial for Ultra-Trace Analysis

Available Capacities: 0.25ml, 2.5ml, 3ml, 5ml, 7ml, 15ml, 35ml

Inner Bottom Types: U-shape, V-shape, Flat

Core Material: High-purity PFA (Perfluoroalkoxy)

Temperature Resistance Range: -200°C to +260°C

Key Properties: Ultra-low metal leaching, chemical inertness, hydrophobic non-stick surface, liner-free tight sealing, unbreakable and translucent structure

Core Application: Ultra-trace mineral analysis, geochemical sample digestion, high-purity solution storage, ICP-MS/OES sample preparation

Why Choose FKN PANDA

FKN PANDA supplies high-purity PFA Screw Cap Vials for global mining laboratories, geochemical research facilities and precision analytical institutions. Our PFA sample containers are designed to support contamination-controlled mineral sample preparation with reliable chemical stability and consistent performance.

With multiple capacity options and inner bottom configurations, these vials provide flexible compatibility with laboratory digestion systems and spectral analysis workflows. Their durable reusable structure and contamination-resistant sealing performance make them a practical solution for mining technical teams, research laboratories and distribution partners requiring dependable ultra-trace analysis consumables.

PFA Autosampler Vials – FAQ

Q1. How to select PFA autosampler vials for ICP-MS analysis of dissolved ore samples in mining laboratories?

Selecting PFA autosampler vials for ICP-MS analysis requires consideration of sample matrix, chemical compatibility, required cleanliness level, and analytical workflow requirements. In mining laboratories, dissolved ore samples may contain strong acids, high dissolved solids, or trace-level target elements, making vial material selection important for maintaining sample integrity. PFA vials are commonly considered for applications requiring high chemical resistance and low contamination risk. Laboratories should evaluate vial volume, cap design, compatibility with autosampler systems, and cleaning procedures according to their mineral testing workflow, from sample digestion through elemental analysis and process evaluation.

Q2. What factors should be considered when choosing PFA vials for trace metal analysis in geological sample workflows?

For trace metal analysis of geological samples, PFA vial selection should focus on material purity, chemical resistance, sample compatibility, and operational requirements. Mining laboratories often analyze complex digestion solutions generated during ore sample preparation, where contamination control and consistent sample handling are essential. Factors such as acid compatibility, internal surface characteristics, volume requirements, and compatibility with ICP-MS or ICP-OES autosampler systems should be evaluated. A suitable vial configuration helps support reliable sample transfer during mineral testing workflows and contributes to repeatable analytical results when processing multiple geological samples.

Q3. How does PFA material improve corrosion resistance compared to glass vials in acid matrix ICP autosampler applications?

PFA material provides strong chemical resistance and is widely used in laboratory applications involving aggressive chemical matrices. Compared with glass containers, PFA vials are suitable for workflows where resistance to certain acids and reduced interaction with sample solutions are important considerations. In mining laboratories, this can be beneficial for handling digested ore samples prepared with acidic reagents during ICP analysis. The selection between PFA and other vial materials should consider the specific acid composition, target elements, analytical sensitivity requirements, and the laboratory’s contamination control procedures.

Q4. Can PFA autosampler vials handle HF-containing solutions from silicate ore digestions without degradation?

PFA is commonly selected for applications requiring compatibility with highly aggressive chemical environments, including workflows involving certain mineral digestion solutions. For HF-containing samples from silicate ore digestion, laboratories should confirm the specific PFA material grade, vial design, and operating conditions before use. Proper selection helps maintain sample containment during preparation and ICP analysis. Mining laboratories should also consider safety procedures, cleaning requirements, and compatibility with autosampler components to ensure reliable operation throughout the complete workflow from ore digestion to elemental measurement.

Q5. How to ensure testing repeatability when using PFA vials for multi-element ore analysis in ICP workflows?

Testing repeatability with PFA autosampler vials depends on consistent sample handling practices, appropriate cleaning procedures, and stable compatibility between the vial and analytical system. In multi-element ore analysis, variations in sample contamination, evaporation, or material interaction may influence measurement consistency. Laboratories can improve workflow control by selecting suitable vial specifications, maintaining standardized preparation procedures, and using consistent operating conditions across sample batches. PFA vials can support repeatable ICP workflows when integrated properly into the overall mining laboratory process, including sample preparation, mineral testing, and analytical verification.

Q6. How to integrate PFA vials into an automated sample introduction workflow for mining laboratories?

Integration of PFA autosampler vials into automated sample introduction systems requires attention to vial dimensions, rack compatibility, probe requirements, and laboratory workflow configuration. Mining laboratories using ICP-MS or ICP-OES systems should ensure that the selected vials match the autosampler platform and sample handling process. Proper integration supports efficient movement from prepared ore digestion solutions to automated elemental analysis. During laboratory expansion or equipment replacement projects, PFA vial selection should be considered together with other sample introduction components to maintain reliable operation and consistent analytical procedures.

Q7. Which PFA vial cap design minimizes evaporation loss during long autosampler sequences?

Cap design is an important consideration for long analytical sequences where sample stability must be maintained. In mining laboratories, ICP workflows may involve multiple samples with extended autosampler operation, making evaporation control and secure sealing important factors. The appropriate PFA vial cap configuration should match the analytical application, sample properties, and instrument requirements. Laboratories should evaluate sealing performance, ease of handling, and compatibility with automated systems when selecting vial assemblies for mineral analysis workflows involving trace element measurements or complex ore digestion solutions.

Q8. What cleaning procedures are recommended for PFA vials between different sample matrix types?

Cleaning procedures for PFA autosampler vials should be established according to the sample matrix, reagent composition, and analytical requirements. Mining laboratories processing different ore types may encounter variations in acid concentration, dissolved minerals, and trace element targets. A controlled cleaning approach helps reduce potential carryover between samples and supports consistent analytical performance. Laboratories should follow appropriate chemical cleaning methods, rinsing procedures, and handling practices suitable for high-purity applications. The cleaning protocol should be validated within the laboratory workflow before routine use in ICP-based mineral testing.

Q9. What factors influence PFA vial selection for lithium brine direct analysis by ICP-OES autosamplers?

For lithium brine analysis, PFA vial selection should consider sample chemistry, dissolved solids content, required cleanliness, and compatibility with the ICP-OES autosampler system. Lithium brine samples may contain complex dissolved salts and matrix components that require careful sample handling during elemental analysis. Laboratories should evaluate vial material compatibility, sample volume requirements, sealing performance, and workflow efficiency. Proper vial selection supports reliable transfer of prepared samples through automated analysis systems and helps maintain consistency during mineral resource evaluation and critical mineral testing programs.

Q10. How to qualify PFA vials for quality-controlled mining laboratory applications?

Qualification of PFA autosampler vials for mining laboratory applications involves reviewing material specifications, application compatibility, cleaning procedures, and documentation requirements defined by the laboratory quality system. For laboratories operating under controlled analytical environments, vial selection should align with procedures for trace element analysis, sample preparation, and instrument operation. Evaluation may include confirming suitability for specific sample matrices, maintaining consistent handling procedures, and documenting usage conditions. A structured qualification process helps laboratories manage analytical reliability during routine mineral testing, research programs, and continuous quality control operations.

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