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Chemetric
   
Analytical Methods

Alkalinity
Aluminum
Ammonia
Bromine
Calcium (see Hardness)
Carbohydrazide
Carbon Dioxide (dissolved)
Chemical Oxygen Demand (COD)
Chloride
Chlorine
Chlorine Dioxide
Chromate (hexavalent)
Conductivity
Copper (soluble)
Cyanide (free)
DEHA
Detergents (anionic surfactants, MBAS)
Filming Amine (aliphatic amine)
Fluoride
Formaldehyde
Glutaraldehyde
Glycol
Hardness
Hydrazine
Hydrogen Peroxide
Hypochlorite (see Chlorine)
Iron
Manganese
Mercaptobenzothiazole (MBT)
Molybdate
Nitrate
Nitrite
Oxygen (dissolved)
Ozone
Peracetic Acid
Permanganate
Persulfate
pH
Phenols
Phosphate, ortho
Quaternary Ammonium Compounds (QACs)
Silica
Sulfate
Sulfide
Sulfite (free)
Thiosulfate
Total Dissolved Solids (TDS)
Total Petroleum Hydrocarbons (TPH) in Soil
Turbidity
Zinc
 

 
 
Water Test  kits – CHEMEtrics for good measure

No More Problems With Solutions.
   If water analysis is your responsibility, your first analysis should start with
  CHEMetrics self-filling reagent ampoules. These extraordinarily simple snap-and-read test kits actually have a lower cost per test than the labor intensive versions you may be using now. Measured either instrumentally or by visual color comparison, you can have accurate, reliable, quantitative results for over 45 analytes in just two minutes or less.
 
No Mixing. No Measuring. No Mess.
   Traditional methods often require sample and reagent preparation, multiple
  steps, and clean up. With the CHEMetrics systems, you simply immerse the ampoule in the sample, snap the tip, and quickly obtain dependable results.
 
Fewer Steps Means Fewer Errors.
   Because test preparation is virtually eliminated, our products reduce potential
  operator error. That saves retesting time and money. And CHEMetrics vacuum-sealing helps you avoid inaccurate results from stale or unstable reagents.
 
Safer Testing.
   Instead of handling chemicals and samples, you can reduce exposure significantly
  with CHEMetrics self-filling ampoules. Each contains a unit dose of pre-formulated reagent sealed in glass so that direct contact with chemicals is minimized.
 
 Portable, Disposable, & Refillable.
   Packaged with everything you need to run 30 tests, CHEMetrics products
  are compact and highly portable, making them ideal for fast, dependable analysis in the lab or in the field. And refill packs of 30 ampoules are always available with a single telephone call.
  

    
 
Visual Colorimetric Analysis
 
The CHEMets® Method
To perform a test, immerse the CHEMet ampoule into the sample and snap off the tip (Step 1) the correct volume of sample is automatically drawn in, filling the ampoule; a small inert gas bubble remains in the ampoule.
To facilitate mixing the sample and reagent, tilt the ampoule back and forth so the bubble travels from end to end (Step 2). In 2 minutes or less, quantify the result by comparing the filled ampoule to the appropriate color standard(s) (Step 3).
For higher concentrations, the flat comparator is used. For lower concentrations, the round comparator is used. The ampoule is compared with the standards until a color match is found. Kits include 30 ampoules, comparator(s), accessory solution(s) (when necessary), a sample cup, and instructions. Refill packs of 30 ampoules and accessory solutions are available separately. Most comparators have a 2-year shelf-life. Safety Data Sheets (SDSs) are available on CHEMetrics website under "Support".
 

CHEMets ampoules are designed for maximum simplicity and accuracy. Each glass ampoule is 7 mm in diameter, 100 mm in length, with a tapered, pre-scored tip; reagents are vacuum-sealed inside.
 

 

 

Instrumental Colorimetric Analysis
 
The Vacu-vials® Method
To perform a test, immerse the Vacu-vials ampoule into the sample and snap off the tip (Step 1)--the correct volume of sample is automatically drawn in, filling the ampoule; a small inert gas bubble remains in the ampoule.
To facilitate mixing the sample and reagent, tilt the ampoule back and forth so the bubble travels from end to end (Step 2). In 2 minutes or less, quantify the result by placing the filled ampoule in the cell holder of an instrument set to a wavelength for optimal absorbance (Step 3).
If you use an instrument that reads absorbance, the absorbance value can be
converted to concentration units with the supplied calibration equation. A calculator to convert spectrophotometer absorbance readings to test results (ppm) for all CHEMetrics instrumental test kits is posted under the "Support" tab on our website (or click here to view calculator). Direct-reading instruments are available.
Vacu-vials® Kits include 30 ampoules, a zero standard, accessory solution(s) (when necessary), a sample cup, and instructions. Safety Data Sheets (SDSs) are available on CHEMetrics website under "Support".
 

The Vacu-vials ampoules are 13 mm in diameter with a tapered, pre-scored tip; color forming reagents are vacuum-sealed inside.
 

  

   

High Range Visual
Colorimetric Analysis
 
The VACUettes® Auto Dilution Method
Hold the ampoule in a horizontal position while the capillary tip contacts the sample (Step 1). After the capillary fills, immerse it in a diluent (usually deionized water); snap the tip off the ampoule (Step 2). The sample and diluent are drawn into the ampoule where they mix with the reagent (Step 3). The resulting color change can then be compared with the flat or round comparator to quantify results (Step 4).
Kits include 30 ampoules, comparator(s), accessory solution(s) (when necessary), a sample cup, and instructions. Refill packs of 30 ampoules and accessory solutions are available separately. Most comparators have a 2-year shelf-life. Safety Data Sheets (SDSs) are available on CHEMetrics website under "Support".
 

VACUettes ampoules are designed for highly concentrated samples. They employ a patented auto-dilution feature that eliminates the need for a time-consuming and error-prone preliminary dilution. As a result, the entire test takes only 2 to 3 minutes, with a rate of accuracy comparable to a volumetric procedure. The basic design of these 7 mm ampoules is the same as CHEMets ampoules, however, a capillary tip is attached to the tip of each ampoule.
 

  

  

Titrimetric Analysis
 
The Titrets® Method
Titrets ampoules use reverse titration to quantify concentrations. After snapping the ampoule tip, the sample is drawn into the ampoule in small doses (with the Titrettor device included in each kit that precisely controls the sample) (Step 1), until a color change signals that the equivalence point has been reached (Step 2). The titration is stopped at the end point and the ampoule is held upright. The liquid level will correspond to a printed scale on the ampoule's outer surface (Step 3).
Kits include 30 ampoules with valve assemblies, a titrettor, accessory solution(s) (when necessary), a sample cup, and instructions. Safety Data Sheets (SDSs) are available on CHEMetrics website under "Support".
 

Each Titret ampoule is 13 mm in diameter designed for titrimetric analysis. The ampoule contains vacuum-sealed liquid titrant and has a flexible valve assembly attached.
 
    

  

   

 

   

       

 
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