Arsenic Quick was designed to give the user accurate results without sacrificing cost and time. Designed using cutting-edge chemistry, Arsenic Quick reports results in only 12 minutes. Additionally, there are no dangerous chemicals needed to run this kit. With only one simple test procedure (using 3 reagents), Arsenic Quick is a must for any lab, water testing professional, or service technician who values accurate, rapid results without sacrificing cost.
First, your water sample is mixed in the supplied reaction vessel with
reagent #1 (Tartaric acid with rate enhancers). This will acidify your water
sample. Reagent #2, an oxidizer, is then added to remove hydrogen sulfide
interference. Finally, the addition of Zinc powder, reagent #3, inorganic
arsenic compounds (As+3 and As+5) are reduced to arsine gas. A test strip is
used to measure the arsine gas concentration in the water sample.
As arsine gas is generated and comes in contact with the test strip, the
Mercuric bromide indicator on the test strip changes in color from white to
shades of yellow or brown. Once the reaction is completed, the test strip is
removed and matched to a calibrated color chart to obtain a quantitative measure
of arsenic in the tested sample.
The included test procedure is designed to detect inorganic arsenic As+3 and
As+5.
1. For best results, verify that the water temperature is between 20°C to
30°C (ideally 22°C to 28°C). Use a thermometer to verify the temperature of the
sample.
2. To each Reaction Bottle, slowly and carefully add the water sample to the
upper marked line on the bottle (100 mL).
3. Add 3 level pink spoonfuls of First Quick TM Reagent to each Reaction Bottle.
Cap bottles securely with yellow mixing caps and shake vigorously with bottles
upright for 15 seconds.
4. Uncap both Reaction Bottles; add 3 level red spoonfuls of Second Reagent to
each. Cap bottles securely with yellow mixing caps and shake vigorously with
bottles upright for 15 seconds.
This step allows the test to tolerate Hydrogen Sulfide (H2S) up to 2ppm (mg/L).
If you suspect the presence of H2S by smell or testing, allow the sample to sit
for 2 minutes to minimize H2S interference before proceeding to Step 5.
5. Uncap both Reaction Bottles and add 3 level white spoonfuls of Third Reagent
to each. Cap bottles securely with yellow mixing caps and shake vigorously with
bottle upright for 5 seconds.
6. Remove yellow mixing caps. Recap bottles securely using white reaction caps
with turret up (open).
7. Remove two Arsenic test strips from the test strip bottle. Immediately recap
the test strip bottle. In order for the results to be accurate, the test strips
must be oriented correctly, and inserted to the correct depth.
Insert the test strip into the turret:
a) Position the strip so that the test pad and red line are facing the back of
the white reaction cap.
b) Insert the strip into the turret until the red line is even with the top of
the turret, and close (flip down) the turret. This will hold the test strip in
place.
8. Using a timer, time the reaction for 10 minutes. Allow the reaction to occur
in an undisturbed, well-ventilated area. You will notice small hydrogen gas
bubbles being generated.
9. After the 10 minute wait, pull up the turrets and carefully remove the test
strips. Do not touch the reaction pads. Use the Easy-Read Color Chart to
match the reaction pad color. Position the reacted test strip pad behind the
punched holes, view center of test strip pad through the hole, and confirm
precise color match and Arsenic level. Complete matching within the next 30
seconds. After 30 seconds have elapsed, the colors may begin to change. For best
color matching results, use natural daylight; avoid direct sunlight.