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Overview 
 
Before spectroscopic analysis (IR, NMR) became commonplace in the organic chemistry lab, chemical tests were heavily relied upon to support compound identification. A chemical test is typically a fast reaction performed in a test tube that gives a dramatic visual clue (a color change, precipitate, or gas formation) as evidence for a chemical reaction. For example, addition of an orange chromic acid reagent to some compounds causes the chromium reagent to change to a blue-green color (Figure 6.37a). This is considered a "positive" test result, and in this case indicates the presence of a functional group that can be oxidized (alcohol or aldehyde). A negative test result is retention of the original color of the reagent, in this case the orange color 

Overview 
 
Before spectroscopic analysis (IR, NMR) became commonplace in the organic chemistry lab, chemical tests were heavily relied upon to support compound identification. A chemical test is typically a fast reaction performed in a test tube that gives a dramatic visual clue (a color change, precipitate, or gas formation) as evidence for a chemical reaction. For example, addition of an orange chromic acid reagent to some compounds causes the chromium reagent to change to a blue-green color (Figure 6.37a). This is considered a "positive" test result, and in this case indicates the presence of a functional group that can be oxidized (alcohol or aldehyde). A negative test result is retention of the original color of the reagent, in this case the orange color 

Before spectroscopic analysis (IR, NMR) became commonplace in the organic chemistry lab, chemical tests were heavily relied upon to support compound identification. A chemical test is typically a fast reaction performed in a test tube that gives a dramatic visual clue (a color change, precipitate, or gas formation) as evidence for a chemical reaction. For example, addition of an orange chromic acid reagent to some compounds causes the chromium reagent to change to a blue-green color (Figure 6.37a). This is considered a "positive" test result, and in this case indicates the presence of a functional group that can be oxidized (alcohol or aldehyde). A negative test result is retention of the original color of the reagent, in this case the orange color 

Testing article 

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Testing - 
Article - Weather conditions country profile 

Testing continue part1 
biological testing services. Biological Service. With an extensive versatile technical platform, coupled to over 500 m2 of independent laboratory space equipped ...

BIOLOGICAL TESTING

We analyse chemicals and substances used in the workplace to determine if occupational health and safety exposure levels have been exceeded.
Our laboratory utilises state of the art modern instrumental techniques. The dangerous chemicals we test for can include:

industrial chemicals
solvents & BTEX
cytotoxic drugs
arsenic speciation
herbicides and insecticides
heavy metals like lead, mercury and cadmium

Our state of the art techniques include:

GC-MS
LC-MS/MS
LC-ICPMS
XRD
XRF
FTIR
PLM microscopy
Gravimetrics

Laboratory staff are specialists in the above areas with extensive experience.The laboratory is NATA accredited and complies with the requirements of ISO/IEC 17025. Our NATA accreditation number is 3726.