Storing And Handling Reagents; Interpretation; Sample Collection And Storage - Hach DR2400 Manual

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Storing and Handling Reagents

Sample #1 — Sample reading is less than the readings for both calibrators.

Therefore the sample concentration of Alachlor is greater than both 0.1 ppb and

0.5 ppb Alachlor.

Sample #2 — Sample reading is between the readings for the 0.1 ppb and

0.5 ppb Alachlor calibrators. Therefore the sample concentration of Alachlor is

between 0.1 ppb and 0.5 ppb.

Sample #3 — Sample reading is greater than the readings for both calibrators.

Therefore the sample concentration of Alachlor is less than both 0.5 ppb and

• Wear protective gloves and eyewear.

• When storing reagent sets for extended periods of time, keep them out of

direct sunlight. Store reagents at a temperature of 4 °C when not in use.

• Keep the foil pouch containing the Antibody Cuvettes sealed when not in

• If Stop Solution comes in contact with eyes, wash thoroughly for 15 minutes

with cold water and seek immediate medical help.

The Alachlor immunoassay test cannot differentiate between certain herbicides

and metabolites, but it detects their presence to differing degrees. The following

table shows the required concentration for selected chemicals.

2 Chloro-2',6'-Diethylacetaniline

2,6-Diethylaniline

The following compounds are not detectable at 10,000 ppb:

Collect samples in a clean glass bottle. Do not pre-rinse the bottle with the

sample. If the sample cannot be analyzed immediately, store the sample at 4 °C.

Samples may be kept for as long as 14 days. Warm the samples to room

temperature before analysis.

Concentration to give a

positive response of

0.1 ppb Alachlor

Chlorpyirfos

Concentration to give a

positive response of 0.5

ppb Alachlor

ALA_None_Other_IMM_Eng_Ody.fm