We use Li-heparin tubes from TEKLAB. I try to insist that all labs that
use our services use either these or the B-D trace element tubes. The
TEKLAB tubes are cheaper, but require use of a syringe. These are also
suitable for aluminium and can be used for the ultra-trace elements such as
manganese and chromium, provided appropriate care in sampling is taken.
Barry Sampson
At 21:41 31/08/00 +0100, you wrote:
>The only acceptable tubes for collection of blood for serum zinc which
>I have come across are the Becton Dickinson trace element-free
>vacutainer tubes (blue top - no additive - ref 367737).
>
>I would not accept any alternative, although these tubes are
>relatively costly: others all contain significant amounts of zinc,
>especially in the rubber cap.
>
>Nick Miller,
>
>London
>
>> We are about to change over to the Sarstedt blood collection system.
>Do members have experience of any problems with anticonvulsants
>and zinc analyses.What is the recommended sample type for zinc?
>>
>
>
>[log in to unmask]
>
>
Barry Sampson
Principal Biochemist and Honorary Lecturer
Trace Element Laboratory
Clinical Chemistry
Charing Cross Hospital & Imperial College School of Medicine
London W6 8RF
UK
Phone +44-020-8-846-7080
Fax +44-020-8-846-7007
[log in to unmask]
Trace Element Laboratory now on the Web at:
<http://home.clara.net/sampson1/html/laboratory.htm>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|