Analytical chemistry Trinidad & Tobago Lab resources
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Delloyd's Lab Tech resources reagents and Solutions


EXPERIMENTS
C3OF labscripts and labguides. Analytical chemistry experiments.It includes UV-VIS, Fluorescence, AA, GC, FIA and ISE analysis methods.
ACIDS AND BASES
Data on concentrated acids, bases and ammonia. How to dilute and make up 1 M solutions.
GAS CHROMATOGRAPHY
Practical and theoretical considerations: info on similar stationary phases, GC columns, detectors, polysiloxanes, and troubleshooting.
HPLC PROBLEMS
HPLC troubleshooting : leaks, peaks, baseline, back pressure etc. Column cleaning and changing column frits.
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
Serial dilutions. How to calculate parts per million concentrations and volumes, ppm conversions to molarity etc..
LABORATORY WASTE
Laboratory waste management. Disposal of aflatoxin wastes and solvent peroxides. Laboratory safety.Fires and fire extinguishers.
STORAGE
Incompatible chemicals. Storekeeping hazards. List of chemicals that react violently when they come in contact with each other and should not be stored together.


Trinadad and Tobago
MORE RESOURCES
Instrument and experimental.
TOXIC CHEMICALS
PAH,PCB,Pb,As,Hg, pesticides, dioxins, aflatoxins. LD50 dosage,TLV threshold limits,MAC values.
BUFFER SOLUTION
How to prepare a standard buffer 4 or 7, and methods for the preparation of other buffers in range 1 - 13
PLASTICS
Laboratory tubing selection guide. Plastics used in making laboratory apparatus. Cleaning plasticware.
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WATER
Contaminants in drinking water, sources of origen and health effects. Sea water. Chemical composition, salt, metal contents
CARCINOGENS
The use of carcinogens by industry to generate useful products. A listing of known and suspected carcinogens.
SIEVES
Std US UK sieve mesh sizes and size conversions. Also, syringes guage size number and size conversions.
SOLVENT DRYING
BP, SG, Flash point of drying agents. How to prepare pure dry solvents using extruded sodium wire. Disposal of spent sodium.

TITRIMETRY
250ml Volumetric analysis standards and solutions. Acib base, Oxidation/reduction, and Precipitation titrations. Concentrations in both Molarity and Normality.
TITRATION   INDICATORS
The preparation of pH, adsorption, redox, and metal ion indicators used in acid base and EDTA complexometric titrations..
EDTA
List of metals detected by EDTA complexation. Masking agents, buffers, indicators used, pH and color change.
ORGANIC ANALYSIS
Preparation of reagents and solutions for organic qualitative analysis. Reagents specific to class reactions and functional groups.
CHEMICAL   REAGENTS
Preparation of test reagents for chemical analysis, side bench reagents, and special reagents.
SPRAY REAGENTS
Chromatography spray reagents. Included is a chromatography spray index as an aid to selection and identification.
KJELDAHL APPARATUS
Operation of the Kjeldahl microprocessor digestion and titration apparatus, for the determination of nitrogen.
ION SELECTIVE ELECTRODE
A comparative look at the pH and ion selective electrode. Addition methods, ISE filling solution, TISAB buffers, ISA, ppm and molarity.
pH ELECTRODE.
Different types of the ph combination electrode. Uses, operation, maintainance and troubleshooting.
IMMISCIBLE SOLVENTS
Some solvents mix with each other and some do not. Here is a list of such immiscible solvents.
Signature:Dhanlal De Lloyd, Chemistry Department, UWI, The Republic of Trinidad and Tobago.
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