کروماتوگرافی گازی GC مدل 6850Series II

مشخصه

توضیحات

آون ستون کروماتوگرافی گازی GC

Dimensions: 202 × 200 × 105 mm (HWD).

Operating temperature range suitable for all columns and chromatographic separations. Ambient temperature +4 °C to 450 °C.

With LN2 cryo cooling: –80 to 450 °C.

With CO2 cryo cooling: –40 to 450°C

Oven power is turned off automatically when the lid is opened

Column basket diameter: 130 mm

Standard: 5 °C above ambient to 350 °C. With CO2 cryo: –20 °C to 350 °C.

Temperature setpoint resolution: 1 °C

Column bleed compensation

Maximum run time: 999.99 min

Temperature programming: six ramps with seven plateaus

Ambient rejection: <0.01 °C per 1 °C ambient change

Automatic H2 carrier safety turnoff when inlet gas pressure drops

Typical cool-down rate: 350 °C to 50 °C: 5.2 min

Cryogenic gas consumption is typically half that of dual-channel ovens

کنترل الکترونیکی پنوماتیک ها (EPC) کروماتوگراف گازی GC

Pressure setpoint increments: 0.01 psi

Temperature and pressure sensors compensate for ambient variation and altitude

All EPC setpoints are included in the method

Maximum number of modules: one

Maximum number of channels: three

Pressure increments: 0.01 psi

Maximum pressure: 100 psig

Maximum pressure ramp rate (when configured as Inlet): 150 psi/min

ورودی های کروماتوگراف گاز GC

Maximum of two inlets installed.

Split/Splitless capillary inlet (S/SL)

Purged packed injection port (PPIP)

Temperature–programmable vaporizer (PTV)

Temperature–programmable cool-on-column (PCOC)

Electronic pneumatics control (EPC)

When capillary column dimensions are entered, the actual flow and pressure are shown as calibrated digital readouts

Carrier gas selection provided for: He, H₂, N₂ and Ar-CH₄

Pressure setting range: 0 to 100 psi

Constant pressure, constant flow modes

Three ramps for pressure or flow

Optional Merlin Microseal septum guarantees at least 2,000 injections

Septum purge set automatically

Split/Splitless گاز کروماتوگرافی GC

Maximum temperature: 375 °C

Pressure range: 0–100 psi (0–150 psi optional)

Accepts columns from 50-µm id to 530-µm id

Pressure pulse mode

Gas saver mode

Total flow ranges through the inlet: He, 20 to 1,000; H₂, 26 to 1,000; N₂, 20 to 200 mL/min

Split ratio may be adjusted electronically without affecting column flow or head pressure

دتکتور FIDگاز کروماتوگراف GC

Maximum temperature: 375 °C

Automatic ignition

Flame-out detection and reignition

Minimum detectable: <5 pg

carbon/s as propane using N2

carrier and a 0.29-mm id jet

Linear dynamic range:

Linear dynamic range: 107 (±10%)

Full range auto scaling

Data acquisition rate: up to 200 Hz

Flows: air, 0 to 800; hydrogen, 0 to 100; make-up (He or N₂ ), 0 to 100 mL/min

دتکتور TCD کروماتوگرافی گازی GC

Maximum temperature: 375 °C

Minimum detectable: <400 pg propane/mL helium carrier (MDL can be affected by laboratory environment.)

Linear dynamic range: 105 (± 5%)

Flows: reference gas, 0 to 100; make-up (He, H₂, N₂), 1 to 12 mL/min

دتکتور Micro-ECD کروماتوگراف گازی GC

Equipped with hidden anode and high velocity flows for contamination resistance

400 °C maximum operating temperature

Makeup gas types: argon/5% methane or nitrogen

Radioactive source: <15 mCi⁶³ Ni

MDL: <0.008 pg/s lindane

Dynamic range: >5 × 10⁵ with lindane

Data acquisition rate: up to 50 Hz

دتکتور FPDگاز کروماتوگرافی GC

Available in single wavelength only

250 °C maximum operating temperature

MDL: <20 pg S/s, <0.9 pg P/s with dodecanethiol/tributylphosphate mixture

Selectivity: 105 gS/gC, 106 gP/gC

Dynamic range: >103 S, 104 P with dodecanethiol/tributylphosphate mixture

رابط ASLگاز کروماتوگراف GC

7683 ALS Interface standard. Provides power and communications for up to two 7683 automatic injectors, one automatic sampler tray, and one bar code reader.

Injector and tray install easily without the need for alignment.

PCOCکروماتوگرافی گازی GC

Maximum temperature: 375 °C.

Three temperature program ramps or oven track mode

Maximum temperature ramp rate: 350 °C/min

Pressure setting range: 0–100 psi

Total flow setting range: 0 to 100 mL/min

Available with LCO2 cyrogenic cooling only.

Lower temperature limit without LCO2 cyrogenic cooling: Oven temperature plus 3 °C with oven track on, –20 °C with oven track off

Lower temperature with LCO2 cyrogenic cooling: -17 °C with oven track on -20 °C with oven tracks off

PTVکروماتوگراف گاز GC

Maximum temperature: 375 °C

Three temperature program ramps

Temperature ramp rates 0.1 to 720 °C/min

Pressure setting range: 0–100 psi

Total flow setting range: 0 to 200 mL/min N2 0 to 1,000 mL/Min H2 or He

Available with LCO2 cyrogenic cooling only

Lower temperature limit without CO₂: ambient plus 10 °C

Lower temperature with LCO2 cyrogenic cooling: –30 °C (10 °C less than oven)

Available with Gerstel septumless head or Merlin MicroSeal septum head

ابعاد کروماتوگرافی گازی GC

Height: 490 mm to FID cover top, and 505 mm to top of valve box

ولوهای قابل پشتیبانیگاز کروماتوگراف GC

One 6-port gas sampling valve or one 4-port liquid sampling valve can be mounted in a heated compartment. The valve can be connected to the column either directly or via the inlet. Valves may be run-time programmed. Actuating a sampling valve will START a run. Both the traditional actuator/rotary valves as well as piston/diaphragm valves are available. The rotary valves are suitable for most applications. The air-actuated diaphragm valves have a much longer life and are easier to maintain; however, they are not suitable for ammonia, primary and secondary amines, hydrazines, strong oxidizers, and alkaline solutions (pH >10). The recommended operating temperature and pressure ranges for the miniature VICI® diaphragm design are: 50 to 150 °C and 20–300 psi. The valves are actuated pneumatically and require 40 to 50 psi air pressure. The recommended operating temperature range for the rotary 6-port gas sampling valve is 50 to 200 °C and the maximum sample pressure is 400 psi. The operating temperature range for the rotary 4-port liquid sampling valves is 70 °C to 175 °C. At 5000 psi, the maximum temperature is 75 °C while at 1000 psi the maximum temperature is 175 °C. The gas sampling valve, rotary or diaphragm, is supplied with a 0.25-cc loop. Other loops (0.5, 1, and 2 cc) are available separately. Liquid sample valves have a built-in sample loop (0.5 or 1.0-µL size).