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Quality
Control and Quality Assurance
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QUALITY
CONTROL
It
is the objective of Anachem to provide accurate analytical
data which may be used with confidence in a decision making
process. The purpose of our Quality Control Program
is to control the analytical variables and eliminate (or at
least demonstrate) human errors. However, the level
and type of quality control required is not the same for all
samples.
Anachem
processes a wide variety of samples which can be categorized
as established EPA, OSHA, or ASTM protocols, routine
self developed methods and new or unique problems. For
Quality Control purposes these categories will be dealt with
separately. |
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EPA,
OSHA AND ASTM PROTOCOLS
EPA protocols
are published in great detail and include Quality Control
information. Anachem makes every effort to follow these
methods. Our Quality Control effort includes tuning
twice a day using PFBTA, BFB and DFTPP compounds, duplicates
(5%), blanks (5%), internal standards (100%), and surrogate
spiked (100%), as specified by the protocols published in
the Federal Register.
OSHA and
ASTM protocols often allow more latitude in areas such as
choice of column(s) or GC/LC parameters. However, laboratory
procedures, reagents and calculations are prescribed and a
general requirement is made that any deviation from the published
method must meet or exceed the published requirements for
detection limit, accuracy and reproducibility. Anachem
will deviate from these methods only when the technology is
improved and only within the limits allowed by the publishing
authority. Good laboratory practices and quality assurance
programs will apply. |
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ROUTINE
METHODS
Routine
methods will be subject to the same Quality Assurance procedures
as all other methods. Quality Control procedures will
consist of 5% duplicates, 5% blanks and EPA or NIST reference
samples, when possible. In addition, instrument performance
will be documented prior to each sample set. Instrument
calibration will be performed using single or multiple calibration
standards depending on the range of concentrations and customer
requirements. |
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NON-STANDARD
TESTS
Frequently
this laboratory is asked to perform non-standard tests in
unique situations. Often only one sample is submitted
and the customer's requirements may be as unique as the sample.
Quality Control will be discussed with the customer and arrangements
will be made which fit the customer's requirements and budget. |
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QUALITY
ASSURANCE
1. Laboratory
Instrumentation
1.1
Maintenance logs are maintained on all major pieces of equipment.
1.2 Analytical balances are calibrated annually with NIST
weights by an outside source and checked daily
by the chemist.
2. Standard
Methods
2.1
EPA and ASTM protocols are followed without deviation, unless
a written description of the deviation appears
on the report.
2.2 Copies of standard methods are available to all lab personnel
who handle a sample.
3. Record
Keeping 3.1
Samples
3.1.1
Samples are logged into LIMS as they arrive and are assigned
a unique number which is used for sample
tracking.
3.1.2 The chain of custody forms are reviewed by the
Quality officer, or designee and a report is generated which
identifies the customer sample ID, describes the sample,
and details the work to be performed.
3.1.3 Duplicates and spikes are incorporated into the sample
flow by the chemists and reported with the sample results.
3.1.4 Information about sample handling, dates, methods
and raw data are maintained by laboratory
personnel.
3.1.5 Reports are generated by LIMS. One (1)
copy is sent to the customer and a second is filed at Anachem
Analytical Laboratory.
3.1.6 The entire history of any sample can be collected
using the unique sample number for a period of five (5)
years after receipt.
3.2 Instruments
3.2.1 Each instrument has
an electronic log book which records samples run.
3.2.2 Calibrations and performance samples are filed
by date.
3.3 Data
3.3.1 Raw data is filed with Anachem's copy
of the report.
3.3.2 Raw data can be correlated with QC Data and
maintenance data by date.
3.4 Laboratory Records
3.4.1 All laboratory personnel maintain
records which documents the methods used,
date of extraction and date of analysis, special instructions,
problems and the information pertinent to each day's work.
3.5 Calibration Standards
3.5.1 A special notebook records all weights,
measurements, calculations and instructions
associated with the making and use of analytical standards.
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