Mike, in my experience Quantab chloride titrator strips are very accurate
when tested against a standard solution of salt. Most of the error
introduced into the procedure is from sample preparation methods (like
blending and weighing samples). The most inaccurate part of your procedure
may be in the determination of moisture content. Are you using a microwave
oven? There are infrared heated moisture analysis systems which are accurate
but expensive and still do only one sample at a time. Standard laboratory
drying ovens can do hundreds of samples at one time but may require
overnight drying times depending on the nature and size of the sample.
At this time I am not aware of any salt/moisture analysis procedure for
solids which costs less, is faster, and less expensive than a
microwave/Quantab technique. Have you seen the revision of my publication on
the subject at: http://seagrant.orst.edu/sgpubs/onlinepubs/QuickSalt.pdf?
Kenneth S. Hilderbrand Jr.
Seafood Processing Specialist
Sea Grant Extension Program
Oregon State Univ. Marine Science Center
2030 Sth Marine Science Drive
Newport, Oregon 97365-5296 USA
phone: 541 867-0242
fax: 541 867-0369
email: <ken.hilderbrand@hmsc.orst.edu>
-----Original Message-----
From: owner-seafood@ucdavis.edu [mailto:owner-seafood@ucdavis.edu]On
Behalf Of Strang, Mike
Sent: Friday, June 29, 2001 8:51 AM
To: HACCP mailing list (E-mail)
Subject: Salt testing
Listers,
We are currently using Quantab titrator strips for chloride for our salt
analysis to determine %water phase salt in product.
While the strips work OK, I am looking for a better accuracy in
determining salt content and % water phase salt.
However, we would like to keep costs and time expenditures low, and also
stay away from wet chemistry procedures (we don't really have a
chemistry lab). Kind of looks like we want both ends and the middle
here, but I may as well go for it.
Any suggestions?
Thanks!
Mike Strang
Quality Control Manager
Ducktrap River Fish Farm, LLC
57 Little River Drive
Belfast, Maine 04915
Mike.Strang@us.fjord.com
Phone: 207 338-6280
Fax: 207 338-6288
This archive was generated by hypermail 2b29 : Fri Jun 29 2001 - 11:13:57 PDT