Peristaltic Pump Tubing and Sample Loops for ICP

What is the Peristaltic Pump Tubing and Sample Loops for ICP?

Peristaltic pump tubing and sample loops control the flow of sample, internal standard and rinse solutions in ICP systems. They are low-cost consumables whose condition determines flow stability, dilution accuracy and precision.

Overview

A peristaltic pump rotates rollers over flexible tubing, pushing liquid at a rate set by the tube internal diameter and rotation speed. Separate tubes carry sample, internal standard, rinse and, in some systems, diluent or hydride reagents. Because the tubing is squeezed repeatedly, it slowly deforms, hardens and changes delivered volume, so performance drifts unless tubing is replaced on schedule. Materials include PVC for aqueous solutions, silicone for flexibility and chemical resistance, and Tygon or similar blends for broader compatibility with organics. Sample loops in flow injection or valve systems meter precise volumes and must match the method volume. Keeping a supply of each tubing size and replacing all tubes together after maintenance preserves flow balance between channels.

How does it work?

The plasma and sample path are exposed to high temperature, acid fumes and salt deposits, so their components are consumables that wear, corrode or become contaminated. Quartz torches and injectors shape the plasma and must be replaced when they devitrify, crack or accumulate deposits that change sensitivity. Nebulizers and spray chambers set aerosol quality and transport efficiency. RF load coils and torch boxes deliver the plasma power and must be matched to the generator and torch. Peristaltic pump tubing controls sample flow and internal standard addition, and worn tubing changes volumes. Autosampler probes, trays and rinse stations determine carry-over and throughput. Using the correct part number and material for each instrument, element and matrix, and replacing parts on schedule, protects sensitivity, precision and safety.

What are the key features?

• Multiple channels for sample, standard and rinse
• Internal diameter sets the delivery rate
• PVC, silicone and Tygon material options
• Color-coded tubing for quick identification
• Sample loops for precise injection volumes
• Replacement on a defined schedule for stable flow

What are the technical specifications?

A typical peristaltic pump tubing and sample loops for icp configuration offers tubing internal diameters of 0.25–2.8 mm, materials of PVC, silicone, Tygon, flow rates of 0.1–2 mL/min per channel, channels of 3–5, sample loop volumes of 100–1000 µL and chemical resistance of acid or solvent grades. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Peristaltic Pump Tubing and Sample Loops for ICP is used in routine flow control in ICP-OES and ICP-MS, internal standard addition channels, on-line dilution and hydride reagent delivery and flow injection and valve system sample loops. Across the wider ICP Accessories class, laboratories also deploy it for replacement torches and injectors for plasma systems, nebulizer and spray chamber maintenance kits and RF coil and torch box service parts.

Which standards and certifications apply?

Relevant standards and methods include USP <730> Plasma Spectrochemistry, USP <1058> Analytical Instrument Qualification, ISO 11885 Water quality — ICP-OES determination of elements, ISO 17294-2 Water quality — ICP-MS determination of elements, IEC 61010-1 and ISO/IEC 17025. Certification candidates for this model are CE, ISO 9001 manufacturing and Material cleanliness certification; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Accessory condition is the most common reason for drifting sensitivity, noisy baselines and failed quality checks. Establish a maintenance schedule based on sample load and matrix: inspect torches and injectors for deposits and cracks, clean or replace nebulizers when uptake falls, and replace pump tubing and probes at defined intervals. Keep spares of the parts most likely to fail, because a blocked nebulizer or cracked torch stops the laboratory. Handle quartz carefully, store it clean and dry, and never use abrasive tools on injectors or nebulizers. After any replacement, verify performance with a check standard, confirm plasma stability and update the instrument log with the part and date.

How do I select the right Peristaltic Pump Tubing and Sample Loops for ICP?

Select tubing by the flow rate and chemical resistance your method requires, and match the internal diameter to the instrument channel. Keep several of each size in stock and replace all tubes together during maintenance to preserve flow balance. Track replacement dates and check uptake after every change.

How does it compare with other ICP Accessories variants?

Select accessories by exact instrument model, torch type and application. Quartz torches are standard for aqueous and many organic methods, while ceramic or inert torches suit hydrofluoric acid and high-purity work. Injector bore diameter affects aerosol velocity and plasma stability, so match it to the sample introduction system and matrix. Nebulizers range from concentric for clean solutions to V-groove or parallel-path for high solids. Spray chambers differ in transport efficiency and washout time. RF coils and torch boxes must match the generator frequency and power. Pump tubing is chosen by internal diameter and chemical resistance. Autosampler probes and trays must fit the sampler. Confirm part numbers, materials and availability of performance data before ordering.