Scientific Equipment Source
4-555 Wentworth Street East
Oshawa, ON, L1H 3V8
Canada
Tel: 905-231-0930
Fax: 905-231-0944

email

GC, Shimadzu GC-8A, Dual TCD, dual injection

Sold

The reliable and compact GC-8A is Shimadzu's basic gas chromatograph model for dedicated applications. Economical and simple to use, the GC-8A supports a single detector, manual pressure or flow control, on column injection port(s), and analog output. Isothermal or single temperature ramp program models are available. The GC-8A is only 17.3 inches (43.9 cm) wide, yet its large oven facilitates simple column installation and maintenance.

This GC can be setup with data integrator or throughout its analog output connected to computer. Data can be collected and analyzed for example by Clarity software.

Detectors available at extra cost:

  • Flame Ionization Detector
  • Thermal Conductivity Detector (TCD)
  • Electron Capture Detector (ECD)
  • Flame Photometric Detector (FPD)

GC Detectors - Specifications

FID (Flame Ionization) Detector Specifications

Type

Semi-cylindrical electrode, quartz jet

Detection limit

3 x 10-12 g/s for diphenyl

Dynamic range

107

Electrometer noise

Less than 1.5% at max. sensitivity

Electrometer drift

Less than 3% at max. sensitivity

Operational temperature range

~ 450oC in 1oC increments

ECD (Electron Capture) Detector Specifications

Type

Constant current, 10mCi 63Ni radiation source

Detection limit

0.2 pg for g-BHC

Dynamic range

104

Cell

Sealed source

Operational temperature range

~ 350oC in 1oC increments (with overheat protection circuit)

Cell current

0.05, 0.1, 0.2, 0.5, 1, 2 nA, variable by step

Range selection

100 and 101

Clean ECD (ECD-C14) Detector Specifications

Type

Constant current, 10mCi 63Ni radiation source

Detection limit

0.2 pg for g-BHC

Dynamic range

3 x 103

Cell

Sealed source

TCD (Thermal Conductivity)Detector Specifications

Type

Differential type cell with a semi-diffusion flow line.

Filaments

Four, rhenium-tungsten (100 Ohms each)

Bridge current supply

Constant current system (with automated protection)

Sensitivity

20,000 mV mL/mg for nonane

Detector cell volume

4 mL

Operational temperature range

~ 400oC in 1oC increments

FPD (Flame Photometric) Detector Specifications

Type

Selective detection of sulfur and phosphorus (simultaneous detection available); Direct heating with induction current.

Detection limit

5 x 10-11 g S/s for sulfur in thiophene, 1.4 x 10-12 g P/s for phosphorus in parathion

Safety circuit

Automated control of photomultiplier tube current

FID monitor

FID signals are available by adding the optional FID electrode

Dynode voltage

?700 V max.

Range

4 steps (0 ? 3), (100, 101, 102, 103)

Linearity

104 (tri-n-butyl phosphate)

Operational temperature range

~ 350oC in 1oC increments

FTD (Flame Thermionic) Detector (also called NPD) Specifications

Type

Direct heating with induction current

Detection limit

3.5 x 10-14 g N/s for azobenzene

2 x 10-15 g P/s for parathion

Selectivity

1.5 x 104 gC/gN for azobenzene

1.5 x 105 gC/gP for parathion

Dynamic range

1.5 x 104

Operational temperature range

~ 450oC in 1oC increments

PID (Photo Ionization)Detector Specifications

Type

Selective detection of compounds ionized by a UV lamp source

Lamp type

10.2 eV

Detection limit

2 pg of benzene

Dynamic range

107

Other

EM-9/14 electrometer is required. All electrometer specifications are identical to FID specifications

List Some of the Shimadzu Applications

Outline: Ethanol production laboratories are familiar with gas chromatographic (GC) analysis of denaturated ethanol using ASTM Method D5501. This method is often implemented with various "convenience-based" modifications to determine the amount of ethanol, methanol, and total denaturant in the product. This method uses very basic instrumentation, by current standards, and requires that several post-analysis calculations be performed to arrive at values that are meaningful to the production laboratory.

Application Name: SSI_Faster_GC_Ethanol

Market: Biofuels

Description: Improved ASTM-D3612 Method A TOGA System

Outline: Method A outlines the classical analysis procedure for the quantization of gasses contained within transformer oil. Labs that began performing this test on their transformers have many years of historic data that remains important today. This data is used to track the changing conditions within a specifi c transformer, and by monitoring gas levels, judgments may be made as to when preventive maintenance should be performed. This analysis method has been in use for many years and is known to have some areas of weakness. This document describes the technological advances in Gas Chromatography that are employed here to incrementally improve the original method.

Application Name: SSI_GC_Improved_ASTM-D3612.pdf

Market: Transformer Oil

Description: GC Analysis of Greenhouse Gases

Outline: Global warming and pollution have aroused interest in the monitoring and study of various atmospheric gasses that absorb the sun’s rays. These gasses, CO2, Methane and Nitrous Oxide, are present in the atmosphere, and through a variety of means are thought to be increasing in concentration. This document outlines the various means by which each of these gasses may be measured using GC and a variety of detectors. Typical greenhouse gas samples are contained within a matrix of atmospheric air, requiring chromatographic separation. Often, samples contain water, which can interfere with the chromatographic separation, detection mechanism or damage a detector.

Application Name: SSI_GC_Green_Gasses_Lo.pdf

Market: Greenhouse Gases

Description: GC-2010 Analysis of Biodiesel for Free and Total Glycerines by ASTM-6584

Outline: Rising prices of diesel fuel are creating a market for alternative sources. One of those sources is diesel fuel derived from Vegetable Oil.Diesel fuel made from plants has the potential to contain glycerols in the form of free glycerin, mono, di and triglycerides.

Application Name: SSI_GC_2010_Biodiesel

Market: Biodiesel

Description: Using the Shimadzu GC System in the Fuel-Grade Ethanol Production Laboratory

Outline: In the case of the ethanol production plant, GC analysis is used to determine the total amount of denaturant added to the final ethanol product prior to shipment. This analysis is required in certain ethanol markets. The denaturant, being a petroleum distillate product, can contain hundreds of different compounds. The GC analysis for ASTM D5501 certification measures the amount of methanol, ethanol, and total amount of denaturant as area percents. These area percents are corrected, per the ASTM method, to give corrected volume percentages for these materials.

Application Name: SSI_GC_Ethanol

Market: Fuels

Description: Polycyclic Aromatic Hydrocarbon Analysis

Outline: This method is suitable using the Shimadzu QP-2010 GC/MS to identify and quantitate PAH’s at low levels. The Environmental Protection Agency requires that this analysis be performed in compliance with the protocol specified in the United States Federal Register 40 CFR and this method is not meant to replace that criteria.

Application Name: Polyclinic

Market: Environmental

Description: Polycyclic Aromatic Hydrocarbon Analysis

Outline: This method is suitable using the Shimadzu QP-2010 GC/MS to identify and quantitate PAH’s at low levels. The Environmental Protection Agency requires that this analysis be performed in compliance with the protocol specified in the United States Federal Register 40 CFR and this method is not meant to replace that criteria.

Application Name: Polyclinic

Market: Enrivonmental

Description: TOGAS - Tranformer Oil Gas Analysis System

Outline: The analysis of gas in transformer oil is not a new requirement. Care and maintenace of expensive transformers has been facilitated by routinely sampling the transformer oil and determining the concentration of various gases

Application Name: SSI-PD-GC-0206

Market: Environmental

Description: High Speed Gas Chromatography Analysis For Benzoid Hydrocarbons Using GC-17AV3

Outline: "High Speed Gas Chromatography" is a recent advance in separation science that dramatically can reduce analysis run time without sacrifice to analytical performance. This technology allows some separation times to be reduced from minutes to seconds. This Application Note showed results from instrumentation using the 0.1mm I.D. and 0.32mm I.D. Columns: GC-17AV3 Gas Chromatograph, AFC-17H High Pressure/High Flow Controller, SPL-17 Split/Splitless Injection Port, FID-17 Flame Ionization Detector, AOC-20I Autoinjector, and Class-VP Data Acquisition System.

Application Name: SSI-AP-GC-012

Market: Instruments

Description: High Speed Gas Chromatography Analysis For Explosives Using a GC-17AV3

Outline: High Speed Gas Chromatography" is a recent advance in separation science that dramatically can reduce analysis run time without sacrifice to analytical performance. This technology allows some separation times to be reduced from minutes to seconds. This application note examines a set of explosive compounds using high speed GC.

Application Name: SSI-AP-GC-011

Market: Forensics

Description: High Speed Gas Chromatography Analysis For C7-C44 Hydrocarbons Using a GC-17AV3

Outline: High Speed Gas Chromatography" is a recent advance in separation science that dramatically can reduce analysis run time without sacrifice to analytical performance. This technology allows some separation times to be reduced from minutes to seconds. This Application Note examines a set of C7 to C44 hydrocarbon compounds using high speed GC.

Application Name: SSI-AP-GC-010

Market: Chemical

Description: High Speed Gas Chromatography Analysis Using GC-17A ver 3 with Narrow Bore Column (.01mm)

Outline: The capillary column used in gas chromatography has seen amazing developments. The diameter of a column is closely related to the theoretical number of plates; the more narrow the column, the higher the obtained number of of theoretical peaks and the sharper the obtained peaks.

Application Name: SC-AP-GC-0174

Market: Instruments

Description: New FTD Collector allows for the use of chlorinated solvents

Outline: Directive #18 of the Japanese Ministry of Health and Welfare (Official Bulletin #1329, promulgated 31 January 1994, effective 1 May 1994) revised test methods for foods, additives and related materials, and test methods for utensils, containers, wrapping and other implements in general.

Application Name: SC-AP-GC-0172

Market: Food

Description: Improved Reproducibility for Capillary Column Analysis Using the AOC-17 Auto Injector

Outline: Gas chromatographs are used in most laboratories. They have become indispensable as have automatic samplers for routine work in factories and other workplaces where many samples must be handled.

Application Name: SC-AP-GC-0167

Market: Instruments

Description: Analysis of Residual Agricultural Chemicals using FTD, FPD, and ECD (NO. 3)

Outline: Agricultural chemicals are considered an integral part of the process of growing crops in order for a more efficient harvest and higher value crop. . Because of rising concerns about environmental problems and their impact on human health, there is a demand to keep close watch over the concentration of residual chemicals in the foods we consume

Application Name: SC-AP-GC-0166

Market: Environmental

Description: Advantages of GC-17A Pressure Programming: Shorter Analysis Time/Improved Sensitivity

Outline: The advanced flow control system (AFC) of the GC-17A gas chromotograph allows the split ratio, column pressure, flow rate and other parameters to be set at the keyboard.

Application Name: SC-AP-GC-0165

Market: Instruments

Description: Analysis of Trace Impurities in Organic Solvents Using GC-17A Wide Range FID

Outline: Capillary Columns are highly effective in separation and other functions for gas chromotography, and are used in a wide variety of fields today. The GC-17A is a user-friendly instrument developed for ease of use, even with the sophisticated capabilities of capillary analyses

Application Name: SC-AP-GC-0164

Market: Environmental

Description: Gas Chromatography Autoinjector (AOC-14)Improves Accuracy of Capillary Column Analysis

Outline: There are several factors that can affect analysis accuracy in gas chromatographic analysis. One of these factors, the introduction of a liquid sample, is discussed in this Application Note. When using a capillary column especially in split/splitless injection mode, separation and reproducibility can show great variation due to the method of the sample introduction.

Application Name: SC-AP-GC-0138

Market: Instruments

Description: Gas Chromatography Analysis of Organic Solvents Using Capillary Columns #2

Outline: Of the organic substances used as solvents and diluents for paints, printing ink, adhesives and composite resins, 17 substances are required by the Japan Labor Ministry to be measured based on the work envionmental measurement standard. Recently, a part of this work was revised, adding 30 organic substances to the list of substances to be measured.

Application Name: SC-AP-GC-0137

Market: Chemical

Description: Gas Chromatography Selective High Sensitivity Analysis of Tertiary Amines

Outline: Selective high sensitivity analysis at the sub-picogram level of tertiary amine compounds is now easy with the use of the surface ionization detector (SID), a new detector for gas chromatography. The simple principle behind the SID and several application analyses are introduced in this Application Note.

Application Name: SC-AP-GC-0135

Market: Instruments

Description: Gas Chromatography Headspace Analysis of Herbal Aroma Compounds Using GC-14A & HSS-2B

Outline: Foods are not enjoyed by taste alone. The smell or aroma contributes to simulating the appetite. Though not the major ingredient, herbs play an important role. The flavor components of herbs were analyzed using a gas chromatograph.

Application Name: SC-AP-GC-0134

Market: Food

Description: Gas Chromatography Analysis of Organotin Compounds by ECD

Outline: Organotin compounds have a wide range of uses, including paint for ship bottoms, fishing net anti-fouling agents, wood preservatives, fiber bacteriocide and fungicide, PVC stabilizers, and polymerization catalysts. The majority of organotin compound applications are used for ship bottom paints and fishing net anti-fouling agents. These compounds pose an environmental pollution danger to the oceans. Due to gradual dissolution of these compounds, the danger includes the risk of toxicity to marine organisms and fish after prolonged exposure. The organotin compound most used in paint for ship bottoms and fishing nets is bis-tributyltin exide (TBTTO).

Application Name: SC-AP-GC-0133

Market: Paint

Description: Gas Chromatography Analysis of Gasoline Hydrocarbon Fractions

Outline: It is often necessary to quantify complex mixtures such as automobile gasoline into its hydrocarbon fractions. These fractions include olefinic, aromatic, and saturated hydrocarbons. There are several methods used to obtain the concentration of each fraction. Currently, there are two methods commonly used in Japan. One method is the Fluorescent Indicator Adsorption Method (FIA) as specified by Method JIS K 2536. Gas chromatography is the second method that uses the MSG C-PONA Analysis System, in which both 13X molecular sieve and polar packed TCEP packed columns are utilized.

Application Name: SC-AP-GC-0132

Market: Chemical

Description: GC Analysis of High Boiling Point Compounds Using Aluminum-Coated Capillary Columns #2

Outline: In the past, the outer surface of fused silica capillary columns was coated with polyimide resin. These columns are now largely-coated with metallic aluminum, imparting enhanced heat resistance. The chemically bonded, thermally stable liquid phase together with its 0.1-micron thickness render these columns appropriate for good separation of high boiling point compounds. Application Note 130 describes teh features of the fused silica, aluminum-coated column, including examples of triglyceride analysis.

Application Name: SC-AP-GC-0131

Market: Instruments

Description: Gas Chromatography Analysis of the Triglyceride Using Aluminum-Coated Capillary Column

Outline: The range of applications on many fields for fused silica columns has expanded rapidly in recent years. Fused silica columns possess an inactive internal surface, flexibility, and a chemical bonded liquid phase, all of which result in high resolution and superior performance. This application note introduces examples using this high-temperature, aluminum-coated column for the analysis of high-boiling point triglycerides.

Application Name: SC-AP-GC-0130

Market: Food

Description: TOGAS - Transformer Oil Gas Analysis System

Outline: The analysis of gas in transformer oil is not a new requirement. Care and maintenance of expensive transformers has been facilitated by routinely sampling the transformer oil and determining the concentration of various gases.

Application Name: CR-GC-004-1286

Market: Environmental

Description: EPA Method 524.2 Purgable Organics in Drinking Water

Outline: This method is an example 524.2 Purgable Organics in Drinking Water analysis using the Shimadzu QP-5000 GC/MS. This method is suitable to identify and quantitate volatile organics in an aqueous matrix.

 

If you are a bargain hunter please give us a call, we always have instruments in stock, which have not been refurbished and can be sold as is in working condition.

Scientific Equipment Source provides service and training on site in most of central Ontario this includes neighboring cities Ajax, Whitby, Pickering, Oshawa, Toronto, Mississauga. We can also provide training and courses on site on chromatograph (GC), HPLC in the Durham region; this includes Pickering, Ajax, Whitby, Oshawa. For other customers we can be also flexible on arrangements. For the rest of customer any equipment for repair has to be sent back by a courier.