Cdex, Inc. (fka CDEX)

[capnmike]

BHP Billiton and CDEX

http://www.cdex-inc.com/pages/latest-news1.html

TUCSON, AZ — October 30, 2008 — CDEX Inc. (OTCBB: CEXI) announces that a subsidiary of BHP Billiton, the world’s largest mining company, donated a CDEX ID2 Meth Scanner™ to the Globe, Arizona Police Department for use in its battle against illegal drugs.

http://www.cdex-inc.com/pages/testimonials.html

The market demand for a device that can safely
and accurately detect meth is unlimited. Introducing
the ID2 Meth Scanner positions CDEX for
exponential growth in the months to come.

http://www.cdex-inc.com/pages/investorguide.pdf

Francis McAllister, Finance Manager of the BHP Billiton Base Metals Group, which owns the Pinto Valley mine located near Globe, stated, "BHP Billiton is committed to the communities where we operate and we support their efforts to educate people about the harmful effects of drugs and to fight drug abuse. To this end, we donated a Meth Scanner to the Globe Police Department to assist in their efforts to fight drugs in our community. No community is immune to the dangerous grasp meth has taken and we will continue to support the community in the battle against this non-discriminating, devastating drug."

http://www.marketwatch.com/news/story/Business-Leaders-Join-Fight-Against/story.aspx?guid=%7BAECC16E5-FC7B-4E3B-8725-32851DF16C45%7D

BHP Billiton

OIL-IN-WATER ANALYSIS METHOD (OIWAM) JIP
A Final Report for
BG Group, BHP Billiton, CNR International, ChevronTexaco, DTI,
Kerr-McGee, Marathon Oil UK, Shell UK,
State Supervision of Mines and Talisman Energy (UK)

In the UK, Talisman Energy (UK) Ltd has carried out field evaluation studies
comparing an Arjay UV fluorescence based oil-in-water analysis method against the
DTI specified IR method, and also the ISO 9377-2 method (both original and Mod
version) [15, 55]. Field trips were initially made to six installations where samples
were taken and analysed using the respective methods.
Results showed that the UV fluorescence based method correlated well with the DTI
approved method for five out of the six installations. Repeat work (covering the
calibration procedures used) later carried out on the single installation giving a poor
initial correlation, showed good agreement between the IR and Arjay results. All
installations are oil producing with API gravity ranging from 30 o to 39 o (see more in
Section 8).
In Norway UV fluorescence based methods have already been used for monitoring
oil in produced waters, e.g. ConocoPhilips for some of their Ekofisk platforms.

Nevertheless it is also clear that there is a significant cost associated
with new equipment purchase, technician training, maintenance, and also importantly
the fact that GC analysis takes longer to produce results than conventional IR or
indeed UV fluorescence based methods.

Direct implementation of the ISO 9377-2 method in Norway has proved to be
feasible. However, the fact that one operator has already partly switched to an UV
fluorescence based alternative method and one operator is not recommending the
use of the ISO Mod method for direct offshore implementation confirmed the practical
difficulties of the ISO Mod method for offshore use.

A detailed description of the UV fluorescence technique and InfraCal HATR
technique can be found in a report prepared by NEL for UKOOA [7]. For the UV
fluorescence based technique, hand held instruments (see pictures in Figure 6) from
Arjay Engineering and Turner Design Hydrocarbon Instruments are available.

There are a significant number of online oil-in-water monitors in the market.
Techniques used may include the following:
• Focused ultrasonic acoustics
• Image analysis
• Light scattering and turbidity
• On-line solvent extraction and IR analysis
• Infrared attenuation total reflection
• Photoacoustic sensor
Spectral fluorescent signatures
• UV fluorescence
• UV absorption
Detailed descriptions of these techniques could be found in a report prepared by NEL
for UKOOA [7]. In the same report details of commercially available instruments,
advantages and disadvantages, and cost information were also reviewed. A
summary of online monitoring techniques is given in the Table 2.
UV fluorescence and light scattering are considered to be the most matured
techniques currently in use for measuring oil content of produced water. For both
techniques, there are a number of systems available. Examples of these systems are
shown in the Table 3.

https://www.og.berr.gov.uk/environment/NEL-Oilin_Water_Analysis_Method_(OIWAM)_-_Final_Report.pdf

CDEX, Inc. www.cdex-inc.com
Company Overview
Oil and Gas Exploration Services Maintenance, X Ray Fluorescence (XRF) Analyzers, Radioactive Waste Monitoring available from CDEX, Inc. based in Rockville, MD. Click the links below to visit our website or contact us via our profile page.

http://www.kellysearch.com/us-company-900459819.html

[0019] The invention also provides the ability to detect and analyze substances within target areas at substantial standoff distances whether in liquid, solid, or gaseous form. The invention is amenable to unique system configurations (including critical component placement) as well as creation and maintenance of a database of unique signatures for individual and complex mixtures of substances. The invention can utilize miniature spectrograph instruments coupled to detector arrays with high efficiency power capabilities and novel source optics design. The invention's hardware can implement various incident power stabilization methodologies and improved analyses including sample evaluations based on pulsed timing sequences as well as pulse-synchronization modes for operation in sunlight and room light environments

United States Patent Application 20040155202
Kind Code A1
Poteet, Wade Martin ; et al. August 12, 2004

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Methods and apparatus for molecular species detection, inspection and classification using ultraviolet fluorescence


Abstract
The invention provides a system and method utilizing fluorescence spectroscopy in the ultraviolet portion of the electromagnetic spectrum to determine species and concentration of gases, solids and liquids from a substantial standoff distance. Target materials under investigation may include explosives, drugs, bio-aerosols, and controlled substances such as narcotics. The basic measuring system comprises optics, a spectrograph, a detector, and an energy source ("head" components), along with a computer and control electronics and power source.


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Inventors: Poteet, Wade Martin; (Tucson, AZ) ; Cauthen, Harold K.; (Sonoita, AZ) ; Shriver, Timothy D.; (Vail, AZ)
Correspondence Name and Address: HOGAN & HARTSON LLP
IP GROUP, COLUMBIA SQUARE
555 THIRTEENTH STREET, N.W.
WASHINGTON
DC
20004
US


Assignee Name and Adress: CDEX, INC.

http://appft1.uspto.gov/netahtml/PTO/search-bool.html

CDEX, Inc. in Rockville, MD, US (United States)
www.cdex-inc.com
CDEX, Inc. in Rockville, MD, US (United States) - Oil and Gas Exploration Services Maintenance, X Ray Fluorescence (XRF) Analyzers, Radioactive Waste Monitoring available from CDEX, Inc. based in Rockville, MD. Click the links below to visit our website or contact us via our profile page.

http://utilities.kellysearch.com/suppliers/Energy,+Water+&+Waste+Management/US/MD/012

About BHP Billiton

BHP Billiton is the world’s largest diversified resources company, with a portfolio of high-quality, long-life assets and a significant pipeline of growth projects. BHP Billiton employs approximately 41,000 people at around 100 locations in 25 countries across the world. BHP Billiton Petroleum is a substantial oil and gas exploration and production business. Its principal activities are oil and natural gas exploration, development, production and marketing. For more information about BHP Billiton Petroleum go to:

http://petroleum.bhpbilliton.com.

Further information on BHP Billiton can be found on our Internet site: www.bhpbilliton.com.

http://news.moneycentral.msn.com/ticker/article.aspx?Feed=BW&Date=20080929&ID=9203035&Symbol=BHP

CDEX, Inc.
Rockville, MD
US (United States)
CDEX, Inc. in Rockville, MD, US (United States) - Oil and Gas Exploration Services Maintenance, X Ray Fluorescence (XRF) Analyzers, Radioactive Waste Monitoring available from CDEX, Inc. based in Rockville, MD. Click the links below to visit our website or contact us via our profile page.

http://www.zibb.com/all/theme/c/CDEX+Inc