Cannabis Testing Products & Reviews

This chemistry promotes high retention of a wide range of analytes, reducing method development time and facilitating a generic approach to sample preparation.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

This mixed phase chemistry, in which two primary modes of attraction are present, allows for a more efficient and selective extraction compared to traditional reversed phase techniques.  Neutral and ionized analytes can be simultaneously extracted from a complex mixture and eluted as separate fractions. A mixed phase sorbent offers the following advantages: Eluting acidic and neutral analytes separately from basic analyt…

This chemistry promotes high retention of a wide range of analytes, reducing method development time and facilitating a generic approach to sample preparation.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

This chemistry promotes high retention of a wide range of analytes, reducing method development time and facilitating a generic approach to sample preparation.

Functional groups, such as octyl (C8) and octadecyl (C18), can be bonded to the silica surface to provide non polar interactions.  Each of these sorbents exhibits unique properties of retention and selectivity for a particular analyte.  The choice of which sorbent is best for a particular method will be influenced by the percent recovery of analyte from the sample matrix and the cleanliness of the resulting chromatography.

SDB-XC is a poly(styrenedivinylbenzene) copolymer used as a reversed phase sorbent for solid phase extraction.  SDB-XC is not bonded to silica but is a 100% copolymeric particle that is spherical, porous and cross-linked.  It does not exhibit the secondary cationic (silanol) interactions and pH limitations common to bonded silica sorbents, so it offers more predictable and reproducible reversed phase interaction.

The Empore™ High Performance Extraction Disk Plate differs in design from plates offered by other manufacturers and requires a specific vacuum manifold.  Manifolds supplied by different plate manufacturers are specific to the design of their plates and cannot generally be used with plates from other manufacturers.  In some cases, the use of spacers to raise/lower the height of a collection device inside the manifold may overco…

Replacement gaskets are available with the vacuum manifold assembly.  The gasket can become worn over time and the seal between the plate and the manifold will be affected.  This may result in poor vacuum pressure and negatively effect flow rates.  The gasket should be checked regularly and replaced when it becomes worn.

EmporeTM Tape Pads are intended for sealing unused portions of a 96-well solid phase extraction plate during vacuum processing to enable vacuum to be uniformly applied to each well being used.  Use a clean sheet each time for maximum sealing ability.  Note: these tape sheets are not intended for sealing collection plates prior to sample injection because the adhesive may clog the injection needle.

Empore Filter Aid 400 has been shown to improve flow rates and recoveries for separation and filtration of water samples containing suspended solids.  When placed on top of the Empore™ Extraction Disk at a depth of about 1 cm, Empore™ Filter Aid 400 acts as depth filter to inhibit the migration of suspended solids to the surface of the disk.  This reduces extraction time and improves rates and recovery of analytes.

Spark has introduced the second edition of HySphere™ C8 End-Capped cartridges. We have selected a new perfect Spherical sorbent material with a narrow particle size distribution. This will create less back pressure during operation and allows you to run higher flow rates compared to our current HySphere™ C8 (EC). The new cartridge has the same excellent characteristics such as high extraction capacity and selectivity

Fits plastic or glass media bottles with 33mm neck sizes. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. Angled hose connector simplifies vacuum line attachment. Individually packaged, sterile and certified nonpyrogenic. Each system has the membrane material and pore size printed on the unit and is color-coded by membrane type for easy produ…

VICI introduces the GC detector where the PDD (pulsed discharge detector) utilizes a stable, low-powered, pulsed DC discharge in helium as the ionization source. The D-2 is a dual mode, universal detector system which can be retrofitted to your older GC. The D-2-I is a helium photoionization detector, optimized for trace level work with packed columns. The stand-alone systems include detector, controller, electrometer, helium…

Pulsed discharge detector Model D-3 is designed for plug-and-play installation on Agilent GC's, with models available for the 6890 and 7890. The D-3 is optimized for trace level work in the helium photoionization mode, and utilizes the electronics and power supply of the host GC. Model D-5 is optimized for electron capture detection. Available for 110 VAC and 230 VAC.

Model D-5 is a pulse discharge GC detector designed for plug-and-play installation on the Agilent 6890. The D-5 is optimized for trace level work in the electron capture mode, and utilizes the electronics and power supply of the host 6890. Model D-3 is optimized for helium photoionization detection. Available for 110 VAC and 230 VAC.

Model D-4 a GC Detector available in versions for easy installation on most of the GC's in current use, including the Varian 3800, Shimadzu 14 and 17, ThermoFinnigan Trace, Mega, and Top, and Hewlett Packard 5890. The D-4 is single mode, optimized for trace level work in the helium photoionization mode. Available for 110 VAC and 230 VAC.