Facilities and Equipment |
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HPLC-MS High Performance Liquid Chromatography Mass
Spectometry
Function
* Separation of complex chemical mixtures using liquid chromatography
and a variety of stationary phases
* Detection by Photo Diode Array for identification and quantification
* Identification of the compounds using a mass selective detecto
Advantages
* Extremely selective and sensitive
* Will separate non-volatile chemical compounds
Applications
* Analysis of high molecular weight phytochemicals and pharmaceuticals
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HPLC High Performance Liquid Chromatography
Function
* Separation of complex chemical mixtures using liquid chromatography
and a variety of stationary phases
* Detection by Photo Diode Array for identification and quantification
Advantages
* Will separate non-volatile chemical compounds
Applications
* Analysis of high molecular weight phytochemicals and pharmaceuticals
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PREP-HPLC Preparative High Performance Liquid Chromatography
Function
* Separation and collection of relatively large quantities of
volatile and non-volatile chemical compounds
Advantages
* Greater selectivity in separation and collection of chemical
compounds than traditional wet chemical techniques
Applications
* Preparation of pure compounds for chemical standards
* Isolation of components for identification and bioactivity
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HEADSPACE GC Gas Chromatography with
Headspace Apparatus
Function
Thermal extraction of volatiles followed by separation using gas-liquid
system
Advantages
* Analysis of difficult-to-extract samples
* Faster than steam distillation
* Simple sample preparation
Applications
* analysis of formulated products e.g: gel and cream matrices
* rapid screening of leaf material for essential oil quality
* aroma profiles of foods and beverages e.g: wines and honeys
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GC-MS Gas Chromatography-Mass Spectrometry
Function
* Separation and identification of organic compounds using a gas-liquid
system.
* Identification of the compounds using a mass selective detector
Advantages
* Identification of unknown compounds
* Extremely selective and sensitive
Applications
* essential oils
* pesticide residues
* odour chemicals
* pharmaceuticals
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SFE - Super-Critical Fluid Extraction
Function
* Extraction of natural products using very high pressure CO2
as a solvent
Advantages
* Faster and more accurate than steam distillation
Applications
* Analysis of volatile compounds in:
Wood, Leaves and Powders
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Relative Density
ISO 279 |
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Optical Rotation
ISO 592 |
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Refractive Index
ISO 260 |
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More Equipment and Laboratory
photos and details to be added at a later date. |
