6890 Flame Photometric DetectorIntroduction and Theory

August8, 2003

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 2

6890 FPD - Top Level Assembly

AUX 2 TempHeater

Back DET TempHeater

Vent Tube

Photo-Multiplier Tube (PMT)

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 3

6890 FPD Installation

AUX 2 TempHeater Connection

Back DET TempHeater Connection

Vent Tube

Photo-Multiplier Tube (PMT)

Ignitor Connection

High Voltage Connection

Signal Connection

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 4

6890 FLAME PHOTOMETRIC DETECTOR

F la m e P h o t o m e t r ic

Product No. : G2333A/G2334A or HP 6890 option 240/241

Single and Dual Signal options.

EPC Only.

Same design as the 5890 FPD . (Most part numbers the same)

Phosphorus and Sulfur filters available.

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 5

6890 FLAME PHOTOMETRIC DETECTOR

Installation:

Can be retrofitted on older instruments but may require top cover modification.

PMT mounted left to right Single FPD - Fitted in back position (ease of access to front)Dual FPD - Fitted in back : Uses both detector PCB slots : Cannot use ALS in back position.Uses both DETB and AUX2 heated zones to heat transfer line and heatedblock, but only DET temp entered.Requires AUX actuator solenoid bracket and wiring harness.Requires 2.1x 6890 firmware and 4.02 Chemstation (single) 3.0x 6890 firmware and 5.01 Chemstation (dual)

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 6

6890 FLAME PHOTOMETRIC DETECTOR

F lame Photometric

Heater/Sensor connectedto Detector wiring harness

Heater/Sensor connectedto Aux wiring harness

Both heaters are rated 60W, 40VDC

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 7

6890 FLAME PHOTOMETRIC DETECTORDual Wavelength option

PMT 2PMT 1

PhosphorusFilter

SulfurFilter

Air/H2

Lines

Jet

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 8

6890 FLAME PHOTOMETRIC DETECTORDual Wavelength option

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 9

6890 FLAME PHOTOMETRIC DETECTOR

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 0

6890 FLAME PHOTOMETRIC DETECTOR

Chemiluminescence zone 1st Heat Shield

CH3 - S - CH3 + X2 = Products + hv (light)X2 is the oxidising reagent gas.h is Planck's constant.v is the lights frequency.

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 1

6890 FLAME PHOTOMETRIC DETECTOR

S 2

HPO

C H C

S F ilter P F ilter

2

0.5

0

0.5

0

0.5

0

0.5

0

300 400 500 600

Relative SpectralResponse

Wavelength (nm)

Element Wavelength (nm)

Colour

Sulphur 393 blue/purplePhosphorus 525 yellow/green

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 2

6890 FLAME PHOTOMETRIC DETECTORPhoto Multiplier Tube Theory

Electron Multiplication by the DynodesTypical Gain 100,000 - 1,000,000

Photo-emissiveCathode

Anode/Collector

Dynodes

Photon of Light

e -106

Secondary electrons

850 VDC

e -

Photo-electron

DC Voltage

Signal outto electrometer

1 30 90 2500 7500 67500

3 10 270 810 22500 200000

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 3

6890 FLAME PHOTOMETRIC DETECTOR

Primary - Petroleum & PetrochemicalSulphur in process streams, fuels & oil products

SecondaryEnvironmental

Pesticides - sulphur, phosphorus, tin compounds

Flavors & FragrancesBeverages - sulphur containing compounds

Uses

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 4

6890 FLAME PHOTOMETRIC DETECTOR

ConditionsColumn: 30m x 250um HP5MS, 2 ml/min constant flowOven program: 60C for 2 minutes then 15C/min to 300C, hold for 2 minFPD: 150 ml/min H2, 100 ml/min air, and 30 ml/min N2 makeup, 250C and data collected at 20 HzInlet: COC run in oven track mode1 ul injected.

20-40 ppb organophosphate pesticides

min11 12 13 14 15 16 17 18

20

30

40

50

60

1-2 ppm organophosphate pesticides

min11 12 13 14 15 16 17 18

150 pA

0

500

1000

1500

2000

6890 FPD

June 1 9, 2003

Agile nt R e stricte d Page 1 5

6890 FLAME PHOTOMETRIC DETECTOR

Varian3400

PE9000XL

Shimadzu GC 17A

Fisons8000

O.I.5380

HP5890

Agilent6890

S MDL pg/sec Dynamic Range S/C Selectivity

<10010^3

10^3/^6

1010^210^4

2010^310^5

510^310^5

110^310^6

2010^310^5

2010^310^5

P MDL pg/sec Dynamic Range S/C Selectivity

<110^5

10^5?

110^310^5

0.910^410^6

0.210^410^6

0.110^410^5

0.910^410^6

0.910^410^6

Upper temp limit 400 450 450 350 420 300 250Unique features Dual

FlamePPC

H2 / airDual PMT Pulsed

FPDDualPMT

EPC

Also PFPD

EPC HP GC one or two

FPDs

DualPMT

Price $11,595 $7245 $7400