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mercredi 30 janvier 2013

Handbook of Vegetables and Vegetable Processing

 http://t1.gstatic.com/images?q=tbn:ANd9GcRO4bafDyOcpoRKw1Tt9UIoVJZFmZ_n3y9YbE9qcpOoONpauoRSBw

Download:
 http://firatozel.files.wordpress.com/2011/08/handbook_of_vegetables_and_vegetable_processing.pdf

Ou

http://ncsu.edu/foodscience/USDAARS/Acrobatpubs/S114-150/S138.pdf

samedi 5 janvier 2013

L’HUILE ESSENTIELLE DE ALOYSIA TRIPHYLLA

EXTRACTION ET CARACTERISATION DE L’HUILE ESSENTIELLE DE ALOYSIA TRIPHYLLA. EVALUATION IN VITRO DE SON EFFET SUR LA CROISSANCE DE CERTAINS AGENTS PATHOGENES DE L’HOMME


TALEB-TOUDERT K. , BELLANTEUR K. , HADDAD N. , OUAZZOUG T. ,
KELLOUCHE A.
TALEB-TOUDERT karima Département de biologie Faculté des sciences biologiques et des sciences agronomiques Université Mouloud Mammeri de Tizi-ouzou Algérie
BELLANTEUR khalida CRD SAIDAL El harrach Alger Algérie
HADDAD Nora Faculté des sciences biologiques et des sciences agronomiques UMMTO Algérie
OUAZZOUG Taous Faculté des sciences biologiques et des sciences agronomiques UMMTO Algérie
KELLOUCHE Abdellah Département de biologie Faculté des sciences biologiques et des sciences agronomiques UMMTO Algérie

E-mail : ttalebkarima@yahoo.fr


http://www.ummto.dz/IMG/pdf/Mme_TALEB_TOUDERT_Karima.pdf

huiles essentielles de Mentha rotundifolia du Nord de lʼAlgérie

Variabilité de la composition chimique des huiles
essentielles de Mentha rotundifolia du Nord de lʼAlgérie


Les huiles essentielles de Mentha rotundifolia (L.) Huds obtenues par entraînement à la vapeur dʼeau, à lʼéchelle semi pilote
(rendement : 0,8 %), sont analysées par GC-MS et GC-FID. Les résultats montrent lʼexistence vraisemblable de deux chémotypes
lʼun « lʼoxyde de pipéritone », le second « pipériténone » qui sont caractérisés par des teneurs différenciées en ces
deux constituants. Le premier contient lʼoxyde de pipéritone (19,7–31,4 %) et lʼoxyde de pipériténone (27,8–29,4 %) comme
constituants majoritaires tandis que le second révèle une teneur très élevée en pipériténone (54,9 %) et en oxyde de pipériténone
(17,6 %), ces deux espèces moléculaires représentant les 75 % des produits identifi és. Ce chémotype très particulier est
rapporté pour la première fois chez lʼespèce Mentha rotundifolia (L.) Huds.
Mots-clés. Mentha rotundifolia (L.) Huds., composition chimique de lʼhuile essentielle, oxyde de pipéritone, oxyde de pipériténone,
pipériténone, chémotype

Liens:

http://www.bib.fsagx.ac.be/base/text/v11n1/3.pdf

HANDBOOK OF OPERATIONAL AMPLIFIER APPLICATIONS

Bruce Carter and Thomas R. Brown
ABSTRACT
While in the process of reviewing Texas Instruments applications notes, including those
from Burr-Brown – I uncovered a couple of treasures, this handbook on op amp
applications and one on active RC networks. These old publications, from 1963 and
1966, respectively, are some of the finest works on op amp theory that I have ever seen.
Nevertheless, they contain some material that is hopelessly outdated. This includes
everything from the state of the art of amplifier technology, to the parts referenced in the
document – even to the symbol used for the op amp itself:
These numbers in the circles referred to pin numbers of old op amps, which were potted
modules instead of integrated circuits. Many references to these numbers were made in
the text, and these have been changed, of course.
In revising this document, I chose to take a minimal approach to the material out of
respect for the original author, – Thomas R. Brown, leaving as much of the original
material intact as possible while making the document relevant to present day designers. ...........

Download:
http://www.ti.com/lit/an/sboa092a/sboa092a.pdf

Process Measurement and Analysis VOLUME I




Editorial Review
Unsurpassed in its coverage, usability, and authority since first published in 1969, the three-volume Instrument Engineers' Handbook continues to be the premier reference for instrument engineers around the world. It helps users select and implement hundreds of measurement and control instruments and analytical devices and design the most cost-effective process control systems that optimize production and maximize safety.Volume 1: Process Measurement and Analysis now enters its fourth edition, fully updated and with increased emphasis on installation and maintenance consideration. Its coverage is now fully globalized with product descriptions from manufacturers around the world

Download:

ftp://190.90.112.131/Facultades/FIET/DEIC/Materias/Instrumentacion Industrial/Instrument_Engineers__Handbook_-_Process_Measurement_and_Analysis/Instrument Engineers' Handbook - Process Measurement and Analysis/1083fm.pdf

jeudi 3 janvier 2013

A Practical Handbook of Preparative HPLC

 
This text is intended to be a guide for both the novice to preparative
HPLC, and as an aid to the chemical engineer planning to introduce this ‘black art’ into the industrial environment.
The first question to ask is ‘What is preparative?’To many, the isolation of a few grams of an extremely potent molecule may be considered as largescale. In some instances 50 g of a vaccine
will supply the annual market for a particular disease state. In more traditional drug therapies a few tonne may be more typical.
The second question to be answered is ‘What is HPLC?’ This abbreviation is often derived from the term ‘High Performance Liquid Chromatography’, though the term ‘High Pressure Liquid
Chromatography’ is often preferred since high performance can also be achieved at low pressure. Just to confuse the issue, is this the pressure created by the resistance to liquid flow through the
column or, the pressure at which the column is packed? To help you to decide whether you have picked up the correct book let’s be practical. This book will describe particles packed
into columns. These stationary phases are rigid porous media  typically in the range of 5–30 m in size and the columns you are interested in are predominantly pre-packed at 2000–6000 psi or
you are going to self-pack your own dynamic axial compression columns at 50–100 bar.
Too many chromatographic texts dwell heavily on a theoretical and mathematical complexity that bears little relevance to what you actually need to do in order to practice preparative HPLC.
Hopefully this book will describe how to practically go about a preparative separation. It is designed to guide the reader through the choice of equipment and chromatographic modes with minimal
fuss and with reference to only relevant formulae. Much of the ‘black art’ will be removed by the hints and tips of a practitioner with over 20 year’s experience in many modes of chromatographic
separation.
Finally, if you know what dynamic axial compression (DAC) is then you have the correct book so read on.

Download:
http://www.18show.cn/bbs/attachment.aspx?attachmentid=3137

The Handbook of Analysis and Purification of Peptides and Proteins by Reversed-Phase HPLC

 

This handbook presents the basic principles of reversed-phase HPLC for the
analysis and purification of polypeptides. For further details regarding
reversed-phase HPLC separations of polypeptides please refer to the technical
references at the back of the Handbook or contact the Grace Vydac Technical
Support Group.
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Mechanism of Interaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
The Role of the Column in Polypeptide Separations . . . .  . . .8
Analytical Conditions: The Role of the Mobile Phase and Temperature . . . .17
Reversed-Phase HPLC/Mass Spectrometry . . . . . . . . . . . . . . .26
The Role of Reversed-Phase HPLC in Proteomic Analysis . . . . . . . .30
Examples of the Use of Reversed-Phase HPLC
in the Analysis of Polypeptides . . . . . . . . . .  . . . . . . . .32
HPLC as a Tool to Purify and Isolate Polypeptides . . . . . . .. . . . . .40
Viral Inactivation During Reversed-Phase HPLC Purification . . . . . . . . .50
Appendices
Appendix A: Column Characteristics . . . . . . . . . . . . . .52
Appendix B: The Care and Maintenance of Reversed-Phase Columns . . . . .53
Appendix C: The Effect of Surfactants on Reversed-Phase Separations . . . .56
Appendix D: Ion Exchange Chromatography:
Orthogonal Analytical Techniques . . . . . . . . . .  . . . . . . . . .58
Appendix E: The Effect of System Hardware
on Reversed-Phase HPLC Polypeptide Separations . . . .. . . . .60
Technical References . . . . . . . . . . . . . . . . . . . . . . . . . .62

 Download:

http://wolfson.huji.ac.il/purification/PDF/ReversePhase/VYDAChandbookRPC.pdf

Handbook of Food Analytical Chemistry, Pigments, Colorants, Flavors, Texture, and Bioactive Food Components

 

Handbook of Food Analytical Chemistry, Pigments, Colorants, Flavors, Texture, and Bioactive Food Components
Publisher: Wiley-Interscience | ISBN: 0471718173 | edition 2004 | File type: PDF | 624 pages | 81,7 mb
Emphasizing effective, state-of-the art methodology and written by recognized experts in the field, the Handbook of Food Analytical Chemistry is an indispensable reference for food scientists and technologists to enable successful analysis.
* Provides detailed reports on experimental procedures
* Includes sections on background theory and troubleshooting
* Emphasizes effective, state-of-the art methodology, written by recognized experts in the field
* Includes detailed instructions with annotated advisory comments, key references with annotation, time considerations and anticipated results



LANGE'S HANDBOOK OF CHEMISTRY

 
 John A. Dean
Professor Emeritus of Chemistry
University of Tennessee, Knoxville
 McGRAW-HILL, INC.
5 6 7 8 9 0 DOC/DOC 9 0 3 2 1 0 9 8
ISBN 0-07-016384-7
The sponsoring editor for this book was Robert Esposito, and the production
supervisor was Clare B. Stanley. It was set in Times Roman by Progressive
Information Technologies.
Printed and bound by R. R. Donnelley & Sons Company.
 This new edition, the fifth under the aegis of the present editor, remains the one-volume
source of factual information for chemists, both professionals and students—the first place
in which to “look it up” on the spot. The aim is to provide sufficient data to satisfy all
one’s general needs without recourse to other reference sources. A user will find this
volume of value as a time-saverbecause of the many tables of numerical data which have
been especially compiled. ................

 Download:

http://fptl.ru/biblioteka/spravo4niki/dean.pdf

Modern Analytical Chemistry

 David Harvey
DePauw University


 As currently taught, the introductory course in analytical chemistry emphasizes
quantitative (and sometimes qualitative) methods of analysis coupled with a heavy
dose of equilibrium chemistry. Analytical chemistry, however, is more than equilibrium
chemistry and a collection of analytical methods; it is an approach to solving
chemical problems. Although discussing different methods is important, that discussion
should not come at the expense of other equally important topics. The introductory
analytical course is the ideal place in the chemistry curriculum to explore
topics such as experimental design, sampling, calibration strategies, standardization,
optimization, statistics, and the validation of experimental results. These topics are
important in developing good experimental protocols, and in interpreting experimental
results. If chemistry is truly an experimental science, then it is essential that
all chemistry students understand how these topics relate to the experiments they
conduct in other chemistry courses.
Currently available textbooks do a good job of covering the diverse range of wet
and instrumental analysis techniques available to chemists. Although there is some
disagreement about the proper balance between wet analytical techniques, such as
gravimetry and titrimetry, and instrumental analysis techniques, such as spectrophotometry,
all currently available textbooks cover a reasonable variety of techniques.
These textbooks, however, neglect, or give only brief consideration to,
obtaining representative samples, handling interferents, optimizing methods, analyzing
data, validating data, and ensuring that data are collected under a state of statistical
control.
In preparing this textbook, I have tried to find a more appropriate balance
between theory and practice, between “classical” and “modern” methods of analysis,
between analyzing samples and collecting and preparing samples for analysis, and
between analytical methods and data analysis. Clearly, the amount of material in this
textbook exceeds what can be covered in a single semester; it’s my hope, however,
that the diversity of topics will meet the needs of different instructors, while, perhaps,
suggesting some new topics to cover.
The anticipated audience for this textbook includes students majoring in chemistry,
and students majoring in other science disciplines (biology, biochemistry,
environmental science, engineering, and geology, to name a few), interested in
obtaining a stronger background in chemical analysis. It is particularly appropriate
for chemistry majors who are not planning to attend graduate school, and who often
do not enroll in those advanced courses in analytical chemistry that require physical
chemistry as a pre-requisite. Prior coursework of a year of general chemistry is
assumed. Competence in algebra is essential; calculus is used on occasion, however,
its presence is not essential to the material’s treatment.

 Download:

http://www.cntq.gob.ve/cdb/documentos/quimica/210.pdf

Introduction to General Organic and Biological Chemistry



Chemistry An Introduction to General Organic and Biological Chemistry Text Only by Karen C. Timberlake


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 General Chemistry Laboratory Manual - Dakota State University


http://www.homepages.dsu.edu/bleilr/npmanual.pdf

The Cleaning and Regeneration of Reversed-Phase HPLC Columns

 Ronald E. Majors, Agilent Technologies, Wilmington Delaware, USA.
`Reversed-phase chromatography is by far the most widely used technique in high
performance liquid chromatography (HPLC).1 It is popular because it is applicable
to most non-polar analytes and to many ionizable and ionic compounds. Most of
the stationary phases used in reversedphase chromatography are hydrophobic in
nature. Therefore, analytes are separated by their degree of hydrophobic interaction
with the stationary phase and matrices with hydrophobic components can also be
retained in a similar manner.


http://www.chromatographyonline.com/lcgc/data/articlestandard//lcgceurope/262003/61538/article.pdf

regénération des colonnes HPLC

 Utilisation-Conditionnement -stockage et régénération des colonnes HPLC



http://atlanticlabo-ics.fr/catalogues/chromatographie/files/assets/downloads/page0033.pdf