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Toxicology Excellence for
Risk Assessment (TERA)
2300 Montana Avenue, Suite 409, Cincinnati OH 45211
Phone: 513-542-7475
Fax: 513-542-7487
Email:
TERA@TERA.org
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Perchlorate
ANALYTICAL METHODS FOR PERCHLORATE
- Determination of Perchlorate at
Trace Levels in Drinking Water by Ion-Pair Extraction with
Electrospray Ionization Mass Spectrometry This paper
describes the analysis of perchlorate in water by liquid-liquid
extraction, followed by flow injection electrospray mass
spectrometry.
- Perchlorate Chemistry:
Implications for Analysis and Remediation This paper
describes a unique combination of the chemical and physical
properties of perchlorate that are discussed in terms of
remediation or treatment strategies.
- Quantitation of Perchlorate Ion by
Electrospray Ionization Mass Spectrometry (ESI-MS) This
study reports on the abilities of tetralkylammonium cations and
minimally nucleophilic, sterically hindered organic bases to
increase selectivity in ESI-MS determination of perchlorate
without loss of sensitivity.
- Treatment Technologies for Perchlorate
in Drinking Water Due to perchlorate's fundamental
chemical and physical nature, it is difficult to treat or
remediate. Treatment technologies that may prove feasible
for treating contaminated water supplies are discussed.
- Microscale Extraction of
Perchlorate in Drinking Water This study
investigates several extraction solvents and several experimental
work-up procedures for quantifying perchlorate in drinking water.
- Perchlorate Uptake by Salt Cedar
(Tamarix ramosissima) This study suggests
that uptake and leaching of perchlorate from Salt Cedars plays a
role in environmental levels of perchlorate.
- Standard Operating
Procedure for Analysis of Perchlorate and Nitrate
in Drinking Water
The SOP for analysis of drinking water samples
used in the current perchlorate studies is
provided.
- Method for
detecting perchlorate in bottled water
Perchlorate was not found (i.e. < 5 ppb) in 16
bottled waters (Spring Water, Natural Water,
etc.) by ion chromatograph (IC) at the Oak Ridge
National Laboratories (ORNL). The Southern Nevada Water
Authority's samples were read as 9.2 +/- 0.8
ppb.
- Comment on method for
detecting perchlorate in fertilizer It is concluded that fertilizers are not
significant contributors to perchlorate in the
environment with perchlorate only being detected
(> 50 ppb by IC) in sodium nitrate derived
from Chilean caliche (1.2-1.8 mg/g).
Nonetheless, Urbansky's lab is coordinating
a more comprehensive survey of fertilizers and
raw materials.
- Perchlorate levels in Sodium Nitrate
Fertilizer derived from Chilean caliche Samples of
Chilean fertilizer were analyzed by ion chromatography.
Perchlorate was detected at an average of 1.5-1.8 mg/g.
- Analytic
Quantitation Ion
chromatography is the method of choice for
drinking water analyses. EPA is expected to
issue EPA method 314 for use with a Dionex Ionpac
AS 16 column. The AS 16 column was designed
to deal with solutions with high concentrations
of hydrophilic salts (e.g., NaCl, Na2SO4).
- Method for Detecting Perchlorate in
Plants A method for the analysis of perchlorate in
plants using ion chromatography was developed, based on dry
weight, and applied to the analysis of plant organs, foodstuffs,
and plant products.
- Ion Chromatographic Determination
of Perchlorate EPA document that describes
methods for detecting perchlorate in fertilizer and related
materials.
For further information, contact Ms. Joan Strawson at 910-692-7752
or Strawson@tera.org
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© 2004 Toxicology Excellence for Risk Assessment
2300 Montana Avenue, Suite 409, Cincinnati OH
45211
Phone: 513-542-7475
Fax: 513-542-7487
Email: TERA@TERA.org
Last updated: 01/22/2008
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