O&A HYDROCHEMISTRY Document: WI_Nut_007 Version: 1.1 Date: 04/05/2017 AA3 Protocol for Running Samples AA3 protocol for running samples Start of voyage on the processing computer Create Folder in Hydrochem directory V:current\hydrochem\in2015_v01_AA3_files Start of voyage on the AA3 Acquisition computer Select Configure, then “configure software” Choose V:\current\hydrochem\in2015_v01_AA3_files This will ensure a copy is saved to the current directory for the processing computers. The files are also stored on the acquisition computer. 1 Also ensure this other settings are correct: 2 3 4 5 6 Setting up Master analysis and folder for Voyage Select setup analysis Select New analysis Select OK 7 Type in voyage name, this becomes the folder name. e.g.in2015_v01 Add in description e.g. 5 nutrients Enter sample and wash time; 80:40 8 Select units; µmol/L Select Slope only Enter in concentration of stds and select 4 decimal places. Type in each nutrient analysis name under each channel, exactly like this; 1=SILICATE, 2=PHOSPHATE, 3=NITRITE, 4=NOx, 5=AMMONIA. Otherwise Hypro will not recognise. Select Peak Parameters 9 Under Peak parameters, Select Before primer rise acceptance If a noisy channel, e.g.NO2 increase the noise tolerance. 10 Ensure there is not a . after the Cal – Hypro will not recognise. Select Tray Protocol. Can either type this in or select “Load Tray” and load an existing tray setup. When entering or deleting, make sure “Fix” is selected. 11 Enter Drift Sample Check before drift Enter LNSW before baseline Enter Baseline Before End. Hypro uses this Baseline. When finished tray protocol & all other pages, select OK Before starting analysis you must do the following, select the sample tray configuration. Usually 24 for the first tray and 60 for the second tray. Also make sure you use “Calibrants above 900” is selected. If using “Custom Rack” make sure to select. Also select wash pump ON. Select OK on all pages as you close them down. 12 13 To begin analysis 1. Switch on everything before selecting 2. Move air-line tubing either back or forwards 3. Rinse and fill MQ H2O container. Select charting 4. Clamp down platen and peristaltic pump on sampler. 5. Let MQ H2O run through system for at least ½ hour 6. “Set Light Power” lamp should be 11.89 V, right hand click on mouse. 7. Set baseline at 5% 14 8. Switch in reagents and let run for at least 15 minutes before starting analysis (Note: if running NO3 let NH4Cl buffer run for a couple of minutes before switching in Cd column). Make sure baseline is stable. 9. Note % reagent baseline, then reset to 5% - record in AA3 Run analysis sheet. 10. Select “Set Up” and then “Analysis/Run” – double click. 11. Add in sample ID’s into tray protocol. Note: Ensure names in Tray Protocol are in conventional naming format for hypro. For instance Do not use full stops (beware AACE adds a full stop after Cal-please remove this), ASW, or #. Any unusual names add TEST in front of the name, e.g. Test12345 or TestSpecialSample. 12. Change the filename to the following format 150302A-in2015_v01nut001. The 001 is consecutive number and is the run number. 13. If you are using a new Cd column activate it before starting the analysis using 250 ul of stock NO3 std in 30 ml LNSW. 14. Set Gain by sampling highest Cals, if running SiO4 140 µmol/L then set Silicate with Cal 6. 15 Note: setting the gain is only required the first time the analysis is run using the master program. After this the gain settings will always be the same. It is a good idea to still check them. That the high cal is still 90% . If the gain is different manually set the gain back to 10 which sets the AUFS to 1.000, then run the high cals through and click on set gain. 14. Set Gain by sampling highest Cals, if running SiO4 140 µmol/L then set Silicate with Cal 6. 15. Wait for baseline to stabilise and return to 5%, if not reset. 16. Visually check bubble pattern is good, then you are ready to start. Select Stop Select Run & choose the run file you have just made e.g. 150302A-in2015_v01nut001 17. Watch to ensure the baseline is found, if not found after significant amount of time then click on the force baseline icon. 18. Ensure the Primer is found. If it is not found stop analysis. 19. At the end of run watch to see if final baseline is found, if not then press the force baseline. 20. Switch off Cd column and then all reagents to water, rinse for 5 minutes then place all reagents straws into 10% Hypochlorite solution allow this to run for 10 minutes and then place all reagents straw back into MQ H2O and rinse for 30 minutes. 21. Unclamp platen and remove. Unclamp peristaltic pump on sampler. Loosen pump tubing on manifold. 16 All analyses are run without smoothing, baseline, carry-over & drift corrections. These are performed in Hypro. The AA3 is now run without having the “Auto stop and Save if Primer not found” box checked within the Configure Software page. As this can cause the run to stop prematurely. on manifold. Processing the analysis within SEAL Go to Retrieve and select view chart Select the file you just ran. All Processing now occurs in Hypro. However just check over trace within AACE to see if there are any really bad peaks that may need #. 17 Press the to export the file, choose ASCII file. Under Format heading ensure that “Sylk” format is selected. 18 Under Export Data ensure the following boxes are checked; Click Export then Save & Close The exported files will have the following format; 150329A_in2015_v01nut001.sylk and 150329A_in2015_v01nut001.chd They will be found in the following directory C:\Program Files\SEAL Analytical\AACE 6.10\Data Copy the files into the following directory V:current\hydrochem\hypro\Nutrients Rename the files by removing the 150329A_, so that they have the following filenames; in2015_v01nut001.sylk and in2015_v01nut001.chd (std format inYYYY_v##nut###). Files can now be processed in Hypro. Before processing sylk and chd files within Hypro fill out the AA3 Processing worksheet and # any bad peaks (place # in front of number in the peak start column), remove any full stops, ensure conventional naming format for sample ID’s or put Test in front of any unconventional names all within the sylk file. Hypro also now allows you to change peaks within the Analysis Trace to BAD (operator) they will turn red. 19 Settings for windows in Hypro; Phosphate 50-100%, Nitrate 65-105% and Silicate 50-105%. However you will select the green “peak window” by clicking on the start and end position you want. Peak Window Check all data and record all QC information in the AA3 processing work sheet. Side Note: If Want to view AACE Files on Processing Computer and create backup on network On the Processing computer go to Program Files and Select SEAL6.10, paste a copy of the folder “in2015_v01” which contains the Master file (anl) into the Data folder. The folder “in2015_v01” is copied from the C:\Program Files\SEAL Analytical\AACE 6.10\Data on the aquistion computer. Go to V:current\hydrochem\in2015_v01_AA3_files Select the files from the run you just analysed, there is usually 10 files that look like the following; 20 Copy these files into C:\Program files\Seal Analytical\AACE 6.10\Data\in2015_v01 21 Version information Version # Date IDENT Changes made Status IDENT Approved sch531 Approved she384 Click for date Ident Status Ident Click for date Ident Status Ident Click for date Ident Status Ident Click for date Ident Status Ident Click for date Ident Status Ident 01.0 20/10/2015 ree13f Document created 01.1 5/05/2017 she384 Addition of version control and theme 22
© Copyright 2026 Paperzz