Subject: FOR SALE - Misc Lab Equipment
From: pasinola@gs.net (Carey Hogan (IS Analyst))
Date: Thu, 14 Nov 1996 00:32:37 GMT
These are surplus items in an off-facility storage bay for sale to
highest bidder. This stuff will probably go cheap. Have much more,
write and ask.
Please contact C. Hogan at pasinola@gs.net Louisiana area.
Bay Number Item
Condition
220 1 Oven, med, VWR, model 1320 Fair
220 1 Typerwriter, IBM, Selectric Good
220 1 File Cabinet, 3drawer Fair
220 2 Table, small Good
220 1 Centrifuge,large Baxter Exc
220 2 File Cabinet, 4 drawer Fair
220 1 Oven, large Fair
234 1 Fan, exhast, roof Dayton Fair
234 2 Supply, voltage regulator Good
234 4 Cabinet, flamable storage, med Good
234 2 Cabinet, flamable storage, med Good
234 2 Hood, fume, 8 ft Good
234 12 Cabinet, wall and floor, assorted Fair
234 1 Still, Barnstead Good
238 2 Furnace, Thermolyne, model FA10520P Fair
238 1 Locker, Personal, 12 compartment Good
238 8 Shelves, storage Good
238 1 Cabinet, shelves with sliding doors Fair
238 1 Hood, fume, 4 ft Fair
238 5 File Cabinets, 4 drawer Fair
242 1 Hood, fume, self contained Good
242 12 Shelves Fair
242 1 Reverse osmosis system Good
242 1 Autoclave Good
Subject: Sterol standards for GC/coprostanol
From: "Edward D. Hudson"
Date: Wed, 13 Nov 1996 20:41:07 -0330
Dear All,
Does anyone out there know if anyone offers a mixed sterol
standard suitable for GC (either in the free or TMS ether forms)?
I'm looking at analysing sediment trap samples to determine
quantities of individual sterols. I could make up a standard
from pure individual sterols, but if someone offers a ready-made
mixed standard, it would be easier. Thanks in advance.
While I'm at it- anyone know if there was ever a "last word"
in the debate on the value of coprostanol as a fecal marker? (Some
report it as an unambiguous sewage marker, others say it may also be
formed by bacterial delta-5 hydrogenation in sediments/sinking
particles, still others try to get around this by quoting ratios of
coprostanol to other sterols, etc., etc. )
Thank you. Cheers,
Ed :)
Ed Hudson
Department of Chemistry
Memorial University of Newfoundland
St. John's, NF A1B 3X7, Canada
Subject: Re: [Q:] Possible to measure fluoresence at higher energy than exciatated?
From: Robert Leyon
Date: Wed, 13 Nov 1996 20:10:12 -0500
Yes, it is possible. Look up anti-Stokes fluorescence lines in a textbook
of physical chemistry or instrumental analysis. They are produced when
the excitation is from an excited vibrational level in the ground
electronic state to the lowest vibrational level in the excited electronic
state; then the emission is to the lowest vibrational level of the ground
electronic state.
-- Dr. Bob
Department of Chemistry
Dickinson College
Carlisle PA 17013
On Tue, 12 Nov 1996, R. Oestereich wrote:
> In an fluorescence experiment with deluted human blood
> I made a very strange observation: I found a peak in
> the emission spectra (Ex 460, Em 350), which is at a
> higher energy than my excitation energy was.
> Does this mean I found a perpetum mobile?
> Or are there any other effects?
>
>
>
> With best regards,
> R. Oestereich
>
>
Subject: Re: Need Help With Analytical Chem Problem
From: "Michael H. Jubara"
Date: Wed, 13 Nov 1996 10:25:29 -0800
Andrea Melissa Macdougall wrote:
>
> I have received the following problem as part of an analytical
> chemistry assignment, and I don't know where to begin! Any help would be
> greatly appreciated!
>
> "In Agatha Christie's 'The Mysterious Affair at Styles', Mrs.
> Ingelthorpe, a wealthy elderly widow marries Alfred who is 20 years her
> junior. One night, Mrs. I. dies in her bed with a seizure. She was
> Again, thank-you for any help! Please e-mail me at:
>
> ammacdou@acs.ucalgary.ca
>
> Andrea
Lose no sleep my dear. Take a bromide-but not from the butler. That cad
obviously slipped the old dear a mickey. How so? Add the KBr to the
strychnine solution, shake and allow to settle. The result is a bottle
containing a supernatant liquid and a ppt of nasty stuff(if taken in
large doses). Every day the poor dear takes a dose of the liquid (neither
shaken nor stirred, please) which does her neither harm nor good. Ah, but
that last day she pours herself a dose of wet strychnineKBr (75mg if it
is all there). Call the mortuary and Mrs. Marple.
We of course assume that you meant 65mg rather than 65g in the old
biddies body.
Subject: Re: Response to ISO 9000
From: Philip Todd
Date: Wed, 13 Nov 1996 12:28:56
In article: <3288184D.7AA2@netcom.ca> Vanda writes:
>
> Let me share my ISO 9002-94 experience with you. I worked as a QA
> manager for research and analytical laboratory. Since 1991 we worked
to
> comply with US GLP (Good Laboratory Practice) - mandatory for
recognized
> laboratories servicing pharmaceutical or environmental clients. Than
I
> started to work
loads snipped
> ISO Guide 25 is only guide (to explain how to address ISO procedure
in
> lab - but you will still be audited to ISO 9002, not to guide - here
I
> am quoting the registration body).
>
> I hope this information helps. Good luck.
>
>
This seems to have been a fairly painless experience. However, the
registration body is incorrect when talking about ISO Guide 25. This
is not a guide to implementing ISO 9002 for a laboratory. It is a
separate quality system that is similar to ISO 9002, but superior in
some aspects eg great emphasis is placed on validation of methods,
even if you're only implementing a standard method. ISO Guide 25 is
usually implemented in each country under a different name - in the UK
it is called NAMAS (National Accreditation of Measurement and Sampling
..I think).
It sounds as if you're registration body aren't too familiar with this
guide - hardly surprising considering the range of companies that they
look at.
There.. that's my two pennies worth .
(p.s. couldn't be bothered converting to cents)
--
______________________________________________________________________
Philip Todd Leverton-Clarke Ltd
(All opinions are personal) Unit 16, Sherrington Way
Lister Road Industrial Estate
BASINGSTOKE. Hampshire
United Kingdom RG22 4DQ
Tel: +44 1256 810393
______________________________________________________________________