Wireless and palmtop POCKET ABS

Connection

Connect battery to POCKET ABS and boot the device. Firstly, Bluetooth indicator blink in red. Then, start PDE with processing. If it works, the green indicator on bluetooth turn on. If you can not get above, try teraterm to check the correct COM port. If the COM port is incorrect, change the PORT and click the "LINK" to turn on the Green LED.

Module Assembled

Once it started, you can turn on the LED by clinking left-top buttons on the screen.

Calibration

Fill a glass cell with the blank sample (pure water for instance), and insert in the chamber. After checking the top rubber shatter closed, turn off the LED. And click "BASE" on the calibration menu. Set the vertical sampling number "3" and horizontal number "100". Next, Click "B-CH" and check the sampled graph as shown in below figure.

Module Assembled

You can see "Blue dots" placed on the zero point. The averaged number will be used for baseline of the signal. After that, do similar by "G-CH", "R-CH" and memory the baselines. Subsequently, switch the CALIB "BLANK" to measure the no absorption case. Turn on "Blue" and get "B-CH" data. After that, do similar on "G-CH", and "R-CH". This data is memorized as maximum signal with out absorption.

Measurement

Firstly, the blank sample was measured again, I must shows 100% transmittance (11 divs above from the bottom), but some difference can be observed.

Blank Signal1

Blank Signal2 (85 ,72.5, 92)

Concentration Sudan II 1uM(89,70.5,86)

Concentration Sudan II 5uM(91,71,82.5)

Concentration Sudan II 10uM(89,60,73.5)

Concentration Sudan II 50uM(89,33,39)

For above results, I can get the calibration curve as following. Blue and Green show linear and similar absorption coefficient. No absorption was obtained for red. It shows that the fabricated module works!!!

Calibration Curve