how to calibrate ghl ph probe?
237691
To calibrate the pH probe, press the centre button of the circle of buttons, then using the down arrow scroll down to pH settings press the centre button to select. Then scroll down, using the down arrow to Calibration, press the centre button to select this option.
81524
['Primer length should be in the range of 18 and 24 bases.', 'The primer should have a GC content of about 45-55%.', 'The primers should have a GC-lock (or GC "clamp") on the 3\' end (i.e. the last 1 or 2 nucleotides should be a G or C residue).']
1112898
To prepare a 1 M solution, dissolve 121.1 g of Tris base in 800 mL of H2O. Adjust the pH to the desired value by adding concentrated HCl. Allow the solution to cool to room temperature before making final adjustments to the pH.
687664
['Solution A: Dissolve 121.14 g Tris (American Bioanalytical #AB14042) in 800 ml dH2O.', 'Adjust pH to 7.0 with the appropriate volume of concentrated HCl. Bring final volume to 1 liter with deionized water.', 'Autoclave and store at room temperature.']
1408812
Using a measuring cylinder, add 50 cm 3 of dilute sodium thiosulfate solution to a conical flask. Place the conical flask on a piece of paper with a black cross drawn on it. Using a different measuring cylinder, add 10 cm 3 of dilute hydrochloric acid to the conical flask.
705186
Once the RKI GX-2012 is in normal reading mode, you need to send it into calibration mode. Do this by pressing the display and shift buttons at the same time. Now that the screen is asking for confirmation, press the enter/power button once on Auto Calibration to confirm. This will send the monitor into zeroing mode.
348847
['Go to the Settings menu by pressing and holding the Home button.', 'Choose the Display & Sounds from the options.', 'Select Display.', 'Choose Calibrate Display from the Display options. ... ', 'Press the UP and DOWN buttons from the remote to adjust the display.']
848428
Ensure that the normal load is attached. Ensure Battery is charged to 100% before beginning Calibration. Load should be more than 30% for best results. UPS will drain the battery, then switch back online and charge back up.
1133789
['Lbs/day = MGD x (ppm or mg/L) x 8.34 lbs/gal. % purity.', 'GPD = MGD x (ppm or mg/L) x 8.34 lbs/gal. (% purity) x lbs/gal.', 'GPD = MGD x (ppm or mg/L) x 8.34 lbs/gal.', 'ppm or mg/l = lbs/day. or.']
246454
Place the conical flask on a piece of paper with a black cross drawn on it. Using a different measuring cylinder, add 10 cm 3 of dilute hydrochloric acid to the conical flask. Immediately swirl the flask to mix its contents, and start a stop clock. Look down through the reaction mixture.
789777
["Under Devices, right click or press and hold on your game controller's icon, and click/tap on Game controller settings. ( ... ", 'Click/tap on Properties. ( ... ', 'Click/tap on the Settings tab, and click/tap on the Calibrate button. ( ... ', 'Click/tap on Next. (']
848911
After the RKI Eagle 2 is zeroed, press the shift key and then press the display adjust key at the same time. This will bring up a menu, select auto calibration. This will send your monitor into calibration mode, attach the tubing to the hose barb on your regulator.
897876
To calibrate, put the craft on an horizontal surface (important) push the throttle to zero (S1 down) and hold S2 in diagonal down & left for about 1 second. Lights flash quickly for less than a second to indicate that calibration is done.
201284
['Suspend 55 grams of dehydrated medium in 1000 ml purified or distilled water.', 'Heat with frequent agitation until the medium boils. Note: DO NOT AUTOCLAVE.', 'Transfer immediately to a water bath at 50°C.', 'After cooling, pour into sterile Petri plates.']
198060
['Normal values: HCO3: 22-26 meq/L. PCO2: 35 - 45 mmHg. pH: 7.35 - 7.45. ... ', 'Quick derivation: Carbonic acid (H2CO3) equilibrium: [H+] x [HCO3-] <---> [H2CO3] <---> [CO2] x [H2O] [H+] x [HCO3-] = K x [CO2] x [H2O] ... ', 'Final: pH = 6.1 +log (HCO3-/ (0.03 x PCO2))']
2696
['pH < 7.', 'Sour taste (though you should never use this characteristic to identify an acid in the lab)', 'Reacts with a metal to form hydrogen gas.', 'Increases the H+ concentration in water.', 'Donates H+ ions.', 'Turns blue litmus indicator red.']
1074904
Both scales provide a measure of either the H+ concentration or the OH- concentration. Notice that each scale shows were acids and bases both are located. When acids are measured, the pH is less than 7, but the pOH is greater than 7. When bases are measured, the pH is greater than 7, but the pOH is less than 7.