Firma:              Shimadzu

Modell:                         14 A

Kommentar:     Dokumente engl.

FEATURES

1)   High performance column oven: The GC-14A Series employs a unique temperature control circuit that ensures accurate oven temperatures in spite of fluctuations in ambient temperature. Temperature is distri­buted in the oven with an exceptional uniformity. These two features deliver superior reproducibility of retention times - ideal for capillary GC.

2)   Flexible sample injectors: Four sample injectors (of the Same or different types) can be installed together, for selective use. All the injectors are of a cartridge type - each can be replaced in a matter of seconds.

     The injectors are independently temperature-controlled - at any desired temperature, independent of the column oven and the detector ovens.

3)   Laboratory automation oriented design: The GC-14A Series can be connected to a CHROMATOPAC dataprocessor via a current loop interface or to a PC via an RS-232C interface. Connection to a C-R5A CHROMATOPAC permits instant change of GC and data processing parameters through the use of an IC card.

4)   Five-step multilinear temperature programming.

5)   Simplified building of multiple GC system.

     A multidimensional GC system can be built by connecting several GC-14As via temperature-controlled connections.

     Several GC-14As can also be connected to a GC-16A as satellite GCs, to operate under the control of the GC-16A.

6)   Ten battery backup protected files to store GC parameters.

SPECIFICATIONS

1. Column Oven

Inner volume:                           12 liters (230W X 140D X 360Hmm)

Temperature range:                (Ambient +10°C) ~ 399°C (-80°C ~ 399°C with the optional           cryogenic work attachment)

Maximum heating rate:            About 13 minutes from 50°C to 350°C (20°C ambient        temperature)

Range of linear programming: Up to 150°C at 30°C/min., up to 250°C at 20°C/min., and up to   380°C at 10°C/min. (20°C ambient temperature)

Cooling speed:                        About 9 minutes from 300°C to 50°C, about 18 minutes from        399°C to 32°C, and about 7 minutes from 399°C to 100°C (20°C           ambient temperature)

Temperature programming:    0 ~ 40.0°C/min. adjustable in 0.1°C/ min. increments. 5-step        multilinear programming. 655 minutes total programmable time.

2. Sample Injection Unit

Method:                                    Split/splitless, glass insert for single column, glass insert for dual             columns, cool on-column, moving needle, and RATV (Rapidly           Ascending Temperature Vaporizer).

Temperature control:              Independent control by time program within ambient ~ 399°C (1°C           increments)

Type:                                       The units are of a cartridge type to allow one-touch installation      and removal.

3. Detector

Type:                                       TCD, FID, ECD, FPD, and FTD. Four detectors can be installed together.

Detector oven:                         The GC-14A Series has two detector ovens - one houses a TCD             cell and the other up to four other cells.

Temperature control range:    Ambient -- 399°C (1 °C increments)

FID (Flame ionization detector)

Type:                                       Semi-cylindrical electrode, quartz jet

Detection limit:                        3 X 10 ^-12 g/s for diphenyl

Dynamic range:                       10 ⁷

ECD (Electron capture detector)

Type:                                       Constant-current type, 10mCi ⁶³ Ni radiation source

Detection limit:                        0.2pg for γ -BHC

Dynamic range:                       10 ⁴

FTD (Flame thermionic detector)

Type:                                       FTD attachment (FTD-14) is fixed to an FID cell.

Detection limit:                        3.5 X 10 ^-14 gN/s for azobenzene and 2 X 10 ^-15 gP/s for parathion

Selectivity:                               1.5 X 10 ⁴ gC/gN for azobenzene and 1.5 X 10 ⁵ gC/gP for   parathion

Dynamic range:                       1.5 X 10 ⁴

TCD (Thermal conductivity detector)

Type:                                       Differential-type cell with a semi-diffusion flow line. Four rhenium- tungsten filaments (100Ω each).

Bridge current supply:             Constant-current system

FPD (Flame photometric detector)

Type:                                       Selective detection of sulfur and phosphorus (simultaneous          detection is optional)

Detection limit:                        5 X 10 ^-11 gS/s for sulfur in thiophene, 1 X 10 ^-10 gS/s for sulfur in      methyl mercaptan, and 1.4 X 10 ^-12 gP/s for phosphorus in          parathion

4. Keyboard Unit

Type:                                       Removable handy type

Function:                                 Setting and monitoring of GC parameters, time programming,      self-diagnostics, stop-watch, automatic start/stop, and storage of     GC parameters

5. Auxillary Oven

AUX 1:                                     Forced hot air circulation type. Temperature-programmable.

AUX 2:                                     Block heater type. Temperature control by time programming.

6. Signal Output

Three outputs as standard, -1 V ~ +1 V

7. Others

Dimensions and weight:         400 ^W X 475 ^D X 520(590) ^H mm, 39kg

Power consumption:               1700VA (GC-14PF)