Thermal Sample Treatment

Thermal sample treatment covers the core laboratory processes where controlled heating is used to prepare samples
for analysis: drying and conditioning, ashing and ignition, solvent evaporation, reagent activation, and matrix
breakdown prior to elemental analysis. In routine laboratories, this category supports reproducible preparation
steps before chromatography, spectroscopy, titration, gravimetry and microbiology workflows.

Depending on the sample matrix (soil, food, polymers, pharmaceuticals, biological materials) and the analytical goal,
thermal sample treatment may require gentle convection drying, high-temperature furnace ashing, volumetric heating via
microwave digestion, or direct-contact surface heating for fast evaporation and reagent preparation.
Consistent temperature control, uniform heat distribution and safe operation are the critical performance drivers.

Selecting the right thermal sample treatment equipment typically comes down to: target temperature range,
heating uniformity, chamber/plate volume, ventilation or corrosion resistance, programmability (ramps/holds),
documentation needs, and compatibility with your sample vessels, crucibles or digestion reactors.

CATEGORY STRUCTURE (NAVIGATION HUB)

THERMAL SAMPLE TREATMENT INSTRUMENT GROUPS

  • Microwave digestion systems – closed-vessel or controlled digestion platforms for fast, reproducible
    matrix breakdown prior to elemental analysis (e.g., ICP/OES, ICP-MS, AAS). Key factors include pressure/temperature
    control, rotor capacity, acid compatibility and validated digestion programs.
  • Muffle furnaces – high-temperature ashing/ignition equipment used for gravimetric residue, loss-on-ignition,
    mineralization, ceramic/metal heat treatment and crucible workflows. Focus on maximum temperature, ramp/hold profiles,
    chamber volume, insulation quality and safety cut-offs.
  • Laboratory drying ovens – convection or specialized ovens for drying, curing, tempering and thermal conditioning
    of samples and labware. Selection typically depends on temperature uniformity, airflow pattern (natural/forced),
    corrosion-resistant chambers, timers and over-temperature protection.
  • Heating mantles – vessel-shaped heating solutions for round-bottom flasks used in chemistry workflows such as
    reflux, distillation and controlled heating of solvents. Important criteria include flask size compatibility,
    temperature regulation mode and chemical-resistance of the housing.
  • Hot plates – direct-contact surface heating for evaporation, reagent preparation, digestion support and fast thermal
    steps on the bench. Consider plate material/chemical resistance, power rating, temperature control stability and
    plate size for your typical vessels.

FEATURED: LABORATORY DRYING OVENS (EVERYDAY THERMAL WORKHORSE)

In most laboratories, drying ovens are the daily backbone for moisture removal, sample conditioning and stable
thermal pre-treatment prior to measurement. The practical difference between “good” and “excellent” oven results
is usually temperature uniformity, airflow stability, and reliable safety limiting—especially when methods require
consistent drying time-to-constant-mass or repeatable thermal conditioning of materials.

Thermal Sample Treatment Categories