What do these products do in this instrument?
Filters: analytical-method-specified filtration
Treat samples at the method-specified location. Decide whether to filter and select filter material according to the measured components. Assess analytes, blanks, pressure drop and the first sample after replacement separately.
Filters provide method-permitted particle retention or component protection. Target components, pore size and filter material guide selection. Assess pressure drop, adsorption and recovery after replacement in the actual path.
Tubing and fittings: complete paths that preserve target constituents
Connect sample, pump and receiver in fixed fluidics, checking wetted materials against the actual matrix. Include every connection in target-recovery, carryover and washing-recovery assessment.
Tubing and fittings together form sealed connections and the actual transfer path. Check formulation, inner/outer diameters, length, tube-end positioning and port geometry, including added volume in residue and arrival delay.
Design tubing and fittings as a complete wetted path
Tubing, fittings and ports jointly determine sealing, transfer volume and medium-contact coverage. Materials and dimensions must suit formulation, operating conditions and installation. Include tubing length and interface volume in priming, shared residue and arrival delay. After connection changes, recheck delivery and cleaning through the actual path.
Check analyte retention while protecting components
Filters provide method-permitted particle retention or component protection. With actual samples and filter materials, check adsorption, blanks, pressure drop and flow changes as loading accumulates, while measuring analyte recovery. The specific method must validate whether the filtrate remains suitable for analysis.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Materials and assembly | Provide formulation, tubing inner/outer diameters, length, fitting structure and port fit. |
| Volume and load | Calculate shared and replacement-component added volumes; measure actual flow and response. |
| Filtration and method requirements | Confirm filter material and pore size. Compare analyte recovery, blanks and pressure drop before and after fouling, and record recovery after replacement. |
| Operation | Specific operating conditions |
|---|---|
| Filtration | Analytical target, filter material/pore size, filtration location, added volume, actual pressure drop and permitted maintenance |
| Waste and washing | Sample and wash-waste destinations, shared paths, peak drainage and maintenance requirements |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| PE-Series Filters | Particle retention permitted by the method | Cards show representative configurations. Select actual pore size and filter material for the target, pressure drop and recovery requirements. |
| Tubing materials and dimensions | Connection paths and shared volume | Bore, length, load and actual formulation jointly determine materials and dimensions |
| Rigid-tubing fittings | Tube-end positioning and sealed connections | Check tube outer diameter, threads, seal structure and port-bottom geometry |
Explore specific operating and validation tasks
Filtration
Pore size, medium and position depend on the method. Check targets, adsorption and pressure drop before and after filtration, and the first sample after replacement.
Waste and washing
Organize destinations according to media and cleaning agents. After washing, check blanks or the next sample rather than relying on tubing appearance.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Filtration | Compare analytes, recovery and blanks before and after filtration. Check pressure drop and actual flow after loading accumulates, and the first sample after replacement. | Blockage, adsorption, leakage or added filter-assembly volume can change the sample and its arrival time. |
| Waste and washing | Measure actual drainage and vessel protection, then use a blank or the next sample to verify shared-path washing recovery | Incorrect waste routing, accumulated liquid or cleaning residue can contaminate the next sample. |
Evaluate blanks, recovery, aliquot representativeness and restart according to the method.
Does a fitting that tightens prove the tubing assembly is suitable?
Also confirm port geometry, tube-end positioning and seal fit. Check leakage, hold-up and performance after repeated maintenance under actual conditions; thread engagement alone is insufficient.
Dilution metering can share general engineering methods, but field preservation, particles and analyte loss require separate checks.