Where discrete liquid-sample transfer and introduction occur
Define whether the sample enters a dilution vessel or the instrument introduction interface. Assess candidates for acid/salt matrices, particles, flow and inlet pressure, and confirm the sample budget and blank recovery after sample changes.
Delivery to a dilution vessel primarily requires volume control; delivery to an introduction interface also requires system-specific continuous flow, pulsation and pressure checks. Evaluate materials and sample-change recovery using the actual matrix.
Product responsibilities in this operation
Syringe drive and valve positions jointly organize aspiration, holding and dispensing. Record working volume, remaining inventory and replenishment timing according to the sequence.
For spectroscopy and elemental analysis, confirm actual aliquot, source volume remaining, probe height, aspiration/dispense speed and system liquid.
Organize the sequence by actual architecture
- Confirm whether the liquid sample enters a dilution vessel, holding path or instrument introduction interface. Record the acid or salt matrix, particles, remaining sample volume and receiving conditions.
- For this syringe-driven discrete-transfer architecture, check the source, wetted materials, usable capacity and valve position, then aspirate the target working volume.
- Deliver to the designated receiver and measure actual volume. If the receiver needs continuous flow, separately check flow, pressure and fluctuation; a single aspiration/dispensing volume cannot establish introduction suitability.
- Complete sample-change flushing and shared-path refresh, checking blanks and recovery time with the actual matrix. Preserve consumption and sample-identity records before moving to the next source.
Define operating conditions for this task
| To define | Details |
|---|---|
| Actual operating conditions | Actual sample volume, remaining source volume, probe-tip height, aspiration/dispensing speed and system liquid |
| Acceptance target | Measure each discrete aliquot at its dilution vessel, holding path or defined introduction receiver. Check the actual acid or salt matrix, low source volume, particle conditions and first transfer after a source change. |
| Fault localization | Air aspiration, deposits, particles or retained previous sample can change transfer and blank recovery. A correct syringe stroke may still deliver an unsuitable composition or disturb the introduction interface. |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| HLD rotary-valve syringe pump | Aspiration, holding and dispensing with a rotary valve | Check source/outlet valve positions, capacity budget and replenishment timing |
| HMD solenoid-valve syringe pump | Metered aspiration and dispensing with solenoid valves | Check open/closed and power-off states, working volume and replenishment cycle |
Validate operation results at the receiver
Measure each discrete aliquot at its dilution vessel, holding path or defined introduction receiver. Check the actual acid or salt matrix, low source volume, particle conditions and first transfer after a source change.
Record sample consumption, blank recovery and renewal time through the complete path. If the receiver requires continuous introduction, evaluate its flow, pressure and fluctuation separately from the discrete transferred volume.
Locate abnormalities and restore the next operation
Air aspiration, deposits, particles or retained previous sample can change transfer and blank recovery. A correct syringe stroke may still deliver an unsuitable composition or disturb the introduction interface.
Hold the affected sample and confirm its destination and remaining source volume. Restore the permitted path, renew shared liquid and verify the first transferred aliquot and blank before reconnecting to the analytical sequence.
A sample-preparation pump is not automatically suitable for nebulizer supply. Confirm the introduction system for the specific instrument.