PicoGreen P7581 Dye chemistry question

From: Ivey, John (John.Ivey@health.wa.gov.au)
Date: Tue Dec 16 2003 - 19:46:41 EST


Would anyone know the best way to denature PicoGreen? (see thread below)

---------------------------
Query
---------------------------
We wish to use a Gilson liquid handling system to pipette this PicoGreen
into 96 well trays. The liquid handler has a metal
probe and teflon tubing. After use we will flush the system with water.
Over time is the dye likely to bind to the tubing?
What is the best way to denature the dye? Is Picogreen sufficiently
light sensitive that the small amount that might bind
would be denatured by ambient light (fluorescent light tubes)? Could you
recommend a washing solution to ensure complete
removal/denaturation of the dye. Thanks
-------------------------------


It is being used at an unspecified concentration (as outlined in the Molecular Probes dsDNA Quantitation kit product information leaflet).

I have asked Molecular Probes, but they were not able to help. 

Thanks and Merry Christmas

John

John Ivey
Principal Scientist
Cell Biology Unit
Department of Haematology
Royal Perth Hospital
GPO Box X2213
Perth 6847
AUSTRALIA

Phone:	61 8 9224 2410
Fax:	  61 8 9224 3449 



---------------------------
Query
---------------------------
We wish to use a Gilson liquid handling system to pipette this PicoGreen
into 96 well trays. The liquid handler has a metal
probe and teflon tubing. After use we will flush the system with water.
Over time is the dye likely to bind to the tubing?
What is the best way to denature the dye? Is Picogreen sufficiently
light sensitive that the small amount that might bind
would be denatured by ambient light (fluorescent tubes)? Could you
recommend a washing solution to ensure complete
removal/denaturation of the dye. Thanks

-----Original Message-----
From: Larry Yamaoka [mailto:larry.yamaoka@probes.com] 
Sent: 17 December 2003 07:36
To: cyto-inbox
Subject: PicoGreen P7581


Dear Researcher:
PicoGreen dsDNA quantitation reagent may bind to tubing over time.
However, our scientists have not examined this question.

I suggest contacting the company that makes your liquid handling
equipment for their recommendations for cleaning.

Thank you for your interest in Molecular Probes and its products.
Please contact me if you need additional information.

Sincerely,
Larry Yamaoka
Technical Assistance Representative
Molecular Probes, Inc.
Phone:	(541) 335-0353
Fax:	(541) 335-0238
larry.yamaoka@probes.com

Please visit our web site:  www.probes.com

Country: Australia
E-mail: john.ivey@health.wa.gov.au
Subject: Catalog Number P7581

---------------------------
Query
---------------------------
We wish to use a Gilson liquid handling system to pipette this reagent
into 96 well trays. The liquid handler has a metal
probe and teflon tubing. After use we will flush the system with water.
Over time is the dye likely to bind to the tubing?
What is the best way to denature the dye? Is Picogreen sufficiently
light sensitive that the small amount that might bind
would be denatured by ambient light (fluorescent tubes)? Could you
recommend a washing solution to ensure complete
removal/denaturation of the dye. Thanks





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