Palintest Tubetests are integrated with the Palintest photometer system so as to provide a complete system for COD measurement. Palintest COD Tubetests are offered in four ranges:
They are supplied in packs of 25 vials.
The reagent formulations are based on those specified in recognised international standard methods and meet the requirements of conformity testing against national and international standards.
Chloride is an interference to the COD test. Vials offer differing degrees of chloride suppression, so the most appropriate one for your COD and chloride levels should be selected.
This mercury-free formulation is recommended for general use where the samples do not contain levels of chloride exceeding 100mg/l. If your chloride levels exceed this, you will need to either dilute your sample (COD levels present will still need to be within detection range) or select the Mercury-containing vials - M range (suppression up to 2,000mg/l) or 2M range (suppression up to 4,000mg/l).
What is COD?
A chemical oxygen demand (COD) test is used to measure the amount of organic compounds in a water sample. It measures the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrate.
How is COD measured?
COD can be measured using COD tubes and a compatible photometer/spectrophotometer. Tubes must first be digested in an appropriate COD vial digester, cooled, and the COD value can then be read on the meter. We recommend checking out this article here if you need more information on the process.
How do I dispose of COD vials?
COD vials (even the mercury-free ones) contain toxic chemicals that must be professionally disposed of. We are able to provide a number of options for vial disposal - click here.
Can I buy chemicals as a private individual?
The majority of chemicals can be purchased by private individuals but there are a number of products which are restricted for a number of reasons. These include Hazardous chemicals, weapon and drug precursor chemicals and other restricted chemicals.
What's the process for buying Chemicals?
Business User - You should have an account with Camlab so we can verify your status, for online purchases you need to be registered on the website against that business account and logged in. For hazardous and restricted chemicals you may need to undergo an additional check. To facilitate this you should provide a company number when making a purchase. New companies or sole traders may need to provide additional proof of a trading business to ensure we can fulfil your delivery.
These checks may add to the delivery times for these items, The delivery time period will not start until the chemical check has been completed; for clarification please phone 01954233110
Private user - For the purchase of Non-Hazardous chemicals you should be a registered user of the website and be logged in to make these purchases.
Guest checkouts for hazardous or restricted chemicals will be cancelled and refunded.
Delivery to Home addresses?
Camlab use a specialist chemicals courier to deliver chemicals, they will not deliver any hazardous chemicals to a residential address. These must be sent to a business address.
Home office license scheme
We are currently unable to supply chemicals to people who possess a home office license for private individuals under that scheme.
Home office scheme for details click here
Are Camlab chemicals suitable for clinical or other medicinal use?
Camlab supply chemicals for laboratory use only, they are not suitable or recommended for any other use.
Are Camlab chemicals suitable for food use?
Camlab supply chemicals for laboratory use only, they are not suitable or recommended for food use.
A chemical oxygen demand (COD) test is used to measure the amount of organic compounds in a water sample. It measures the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrate. You can see a video on the common method of testing COD with vials in our video here. The start of the COD testing meth...
A Chemical Oxygen Demand (COD) test is used to measure the amount of organic compounds in a water sample. It measures the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrate. The most common method of COD testing is where a water sample is pipetted into a COD vial that contains pre-measured re...
Spectrophotometers are relied on by a wide range of laboratories, for tests ranging from specific parameters, like chlorine or metals concentrations, right through to complex analyses of reaction kinetics. When choosing a spectrophotometer the range of specifications and price is vast, so take the time to list the features you need before you buy and make sure you choose the right one. [c...
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