Analytical chemistry Trinidad & Tobago Lab resources
♦ ♦ ♦ ♦ ♦ Analytical chemistry Resources ♦ ♦ ♦ ♦ ♦
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Lab resources

This site gives info
on
the preparation of reagents,
titrimetry,
buffer solutions,
ppm standards,
pH indicators,
gas chromatography,
atomic absorption,
pH and Ion selective electrodes,
toxic chemicals,
waste management/disposal,
fire extinguishers
and
laboratory safety.

It includes
the
C30F labscripts and labguides,

Enjoy!
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To think...to analyse... to conclude.


Trinadad and Tobago
Lab Scripts Lab Guides Gas Chromatography
EXPERIMENTS
C3OF labscripts and labguides. The analytical chemistry experiments done in C30 and C31F teaching lab. It includes UV-VIS, AA, FIA and ISE analysis methods.

ACIDS AND BASES
Data on the concentrated acids, and info on how to dilute and prepare 1 M solutions of acids bases and ammonia.

GAS CHROMATOGRAPHY
Practical and theoretical considerations: info on similar stationary phases, columns, detectors, polysiloxanes, and troubleshooting.

HPLC PROBLEMS
HPLC troubleshooting : leaks, peaks, baseline, back pressure etc., causes and solutions.

ATOMIC ABSORPTION
Instrumentation, graphite furnace,mercury cold vapor and hydride generation. Spectral lines and AA interferences. Preparation of 1000ppm standards.

EM SPECTRUM
The EM radiation spectrum explained. Frequencies and wavelengths used in Analytical Spectroscopy. Commercial and wireless applications.

PARTS PER MILLION
How to dilute and calculate parts per million concentrations and volumes: ppm conversions to molarity etc..

LABORATORY SAFETY
Safety in the workplace. Laboratory waste management, peroxides disposal. Fires and the types of fire extinguishers used to fight them.


ANAL CHEM RESOURCES
Anal chem methods, resources, data and instrumentation.

TOXIC CHEMICALS
PAH,PCB,Pb,As,Hg
LD50 dosage,TLV threshold limits.

CARCINOGENS
The use of carcinogens by industry to generate useful products. A listing of known and suspected carcinogens.

SOLVENT DRYING
BP, SG, Flash point and drying agents. How to prepare pure dry solvents using extruded sodium wire.

STORAGE
Incompatible chemicals. List of chemicals that react violently when they come in contact with each other and should not be stored together.

IMMISCIBLE SOLVENTS
Some solvents mix with each other and some do not. Here is a list of such immiscible solvents.

BUFFER SOLUTION
How to prepare a standard buffer 4 or 7, and methods for the preparation of other buffers in range 1 - 13
TITRIMETRY
Volumetric analysis standards and solutions for use in acid/base, oxidation/reduction, and precipitation titrations. Concentrations are expressed in both Molarity and Normality.

INDICATORS
The preparation of pH, adsorption, redox, and EDTA indicators used in acid/base and complexometric titrations.

ORGANIC REAGENTS
Preparation of reagents and solutions for organic qualitative analysis: reagents specific to class reactions and functional groups.

ANALYSIS REAGENTS
Preparation of reagents and solutions for both qualitative organic and inorganic analysis: general side bench reagents, and special reagents.

SPRAY REAGENTS
The preparation and use of chromatography spray reagents. Included is a chromatography spray index as an aid to selection and identification.

KJELDAHL APPARATUS
Operation of the Gerhardt Kjeldahl microprocessor digestion and titration apparatus, for the determination of nitrogen.

ION SELECTIVE ELECTRODE
A comparative look at the pH and ion selective electrode,ISE filling solution, buffers, ppm conversions to molarity.

pH ELECTRODE.
Different types of the ph combination electrode. Uses, operation, maintainance and troubleshooting.

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Signature:Dhanlal De Lloyd, Chemistry Department, UWI, The Republic of Trinidad and Tobago.
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