High Technology, Inc.
109 Production Road,
Walpole MA USA 02081
Document Number
OM-E-FC-360-30
Revision Level
Rev. 3
Prepared By
J.S. Bolio
Approved By
S. Titov
Effective date
8/15/2016
Operator’s Manual: HTI BioChem FC-360
Page 166 of 217
HIGH TECHNOLOGY, INC. PROPRIETARY AND CONFIDENTIAL
Sample Handling and Collection
14.3.1.1
Serum
Serum may be analyzed immediately, stored at 4°C for 24 hours, or frozen at -20°C for up to one week.
Samples must be brought to room temperature and homogenized well before assaying.
To obtain accurate results, samples should be free of any clots, fibrin, etc., which would obstruct sample
flow and affect results. The use of a serum clearing agent is strongly recommended.
If a serum separator tube is utilized, care must be taken to avoid inserting the sample probe into the gel
layer. This can create obstructions in the sample probe and the fluid path.
14.3.1.2
Plasma
Plasma samples offer an advantage over whole blood specimens when short term storage is a factor. If
the sample is to be stored, serum specimens are preferable.
Collect the specimen by venipuncture into a Sodium-Heparin evacuated blood collection tube. The
heparin level should not exceed 15 IU per mL of tube volume. Note the time of collection.
Warning: DO NOT USE AMMONIUM HEPARIN, LITHIUM HEPARIN, EDTA, OR NaF TUBES.
Mix the specimen by inverting the tube. Do not shake.
When using Sodium-Heparin collection tubes, collect a full tube of specimen to minimize the effect of
sodium heparin on the ISE Module sodium measurement.
14.3.1.3
Urine Samples
The required minimum sample volume for a urine sample diluted (1 part urine and 9 parts diluent) with
urine diluent is 140 μL (2 x 70 μL).
Warning: Significant carryover into the subsequent serum sample will occur if a urine sample is
inadvertently analyzed in an undiluted form. Potassium errors may exceed 1 mmol/L.
Results are multiplied by 10, so the reported results will be multiplied by ten.
Ne
ver dispense a volume greater than 150 μL because it may come in direct contact with the Calibrant B
port on the side of the sample entry port.
Contamination of subsequent samples and Calibrant B will result.
14.3.1.4
Matrix Effects
Sample Matrix.
The ISE Module is designed to analyze human serum, plasma and diluted urine.