VICI Valco Instruments Co., Inc.
Houston, TX 77055
HPLC Injectors offer multiple port and bore combinations.
Rated for use at up to 10,000 psi liquid, CheminertÃ-® C2XH series injectors feature 1/16 in. fittings and are available with .010 or .016 in. bore in 4, 6, and 10 port configurations, or .006 in. bore in 4 and 6 port versions. Internal volume injectors produce volumes from 10-50 or 20-100 nanoliters, depending on bore size. Versions with .004 and .006 in. bore using 1/32 in. fittings are...
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Injectors and Switching Valves facilitate HPLC.
Cheminert Nanovolume HPLC Injectors and Switching Valves feature .004 in. bore that is uniform throughout flowpath, creating less than 25 nl of port-to-port volume. Individual fingertight fittings work with PEEK, fused-silica, and 1/32 in. electroformed-nickel tubing. Microelectric actuator, operating at 100 msec, determines accurate positioning without limit switches or customer adjustment....
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Permeation Tube emits compound at constant rate.
DynacalÃ-® Permeation Tube is a small, inert capsule containing pure chemical compound in 2-phase equilibrium between its gas phase and liquid or solid phase. At constant temperature, device emits compound through its permeable portion at constant rate. Accurate, stable concentrations range from PPB to high PPM. Permeation Tube rate for existing and new compounds can be certified using...
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Pulsed Discharge Detector offers plug-and-play operation.
Model D3-1-HP helium ionization detector, with Valco Helium Purifier, is specified for HP 6890 gas chromatograph. It includes helium purifier and is suitable for use with columns from 50 micron capillaries to 1/8 in. packed. Universal detector is non-radioactive and non-destructive. With no open flame, no hydrogen requirement and close-to-true-mass response, unit can upgrade FIDs in petrochemical...
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Capillary Columns have high temperature limits.
ValcoBondÃ-® Capillary Columns receive individual rigorous testing to insure they meet standards for resolution, retention characteristics, inertness, bleed, and reproducibility. High upper temperature limits enhance column bake out, reducing sample carry-over and cycle times. Liquid phase processing produces low bleed characteristics while maintaining identical retention characteristics.
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Helium Ionization Detector provides on-site analysis.
D3-1-HP Pulsed Discharge Helium Ionization Detector is non-radioactive, non-destructive, highly sensitive, and universal. Response is linear over wide range, and MDQs for most compounds are in low ppb range. With no open flame, no hydrogen requirement, and close-to-true-mass response, D3-1-HP is suitable for FIDs in petrochemical environments. When helium discharge gas is doped with suitable...
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Multiposition Valves feature preload design.
MW Type Multiposition Valves offer various flow configurations, port and fitting sizes, and actuation options. Rotor can be inspected or replaced without removing valve from actuator. Valves are available with 4 to 16 positions. Standard valve body material is stainless steel, however, valves may be ordered in Hastelloy C-22 or Nitronic 50.
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Gas Purifiers have self-regulating design.
Model HP2 helium purifier provides point-of-use purification of helium or other noble gases to sub-ppm levels of impurities. Model NP2 purifies nitrogen to sub-ppm levels of gaseous impurities. Purification substrate in both gas purifiers is non-evaporable gettering alloy, contained in welded assembly. Self-regulating design eliminates thermal runaway, and maintains getter material at optimal...
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Syringes are for gas, liquid or high pressure sampling.
Precision Sampling Syringes have PTFE plunger tips, stress formed to insure leak-tight seal. Barrels up to 100 Ã-µl are fabricated from borosilicate glass. Smooth bore prevents undue wear of plunger tip and insures smooth, durable seal. Standard needle attachment includes barrier sleeve or packing of PTFE on rear of needle at zero point. This isolates sample from needle cement, preventing...
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Capillary Columns work at high temperatures.
ValcoBondÃ-® Capillary Columns operate at high temperature limits to enhance column bake out, reducing sample carryover and cycle times. Liquid phase processing produces low bleed characteristics while maintaining retention characteristics identical to standard phases. Processes can be combined with automated deactivation, coating, curing, bonding and crosslinking.
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