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Table of Contents

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An analytical batch is a group of samples run together in one sequence, sharing a calibration curve, blanks, reference materials, and verification samples. The alkalinity batch size is 10 samples. Each batch of 10 unknown samples contains a sample to verify precision and a sample to verify accuracy.

Blanks

Blanks are not run for this method because DI water has no buffering capacity and would therefore fail the slope program. Thus, blanks are not applicable to this chemistry.

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Alkalinity dataflow

User-defined variables (Figure 13), with values from the example given in the Dispensing rate section:

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Figure 22. Alkalinity measurement data flow.

Data Available in LORE

Interstitial Waters Standard Report 

  • Exp: expedition number
  • Site: site number
  • Hole: hole number
  • Core: core number
  • Type: type indicates the coring tool used to recover the core (typical types are F, H, R, X).
  • Sect: section number
  • A/W: archive (A) or working (W) section half.
  • Top offset on section (cm): position of the upper edge of the sample, measured relative to the top of the section.
  • Bottom offset on section (cm): position of the lower edge of the sample, measured relative to the top of the section.
  • Top depth CSF-A (m): position of observation expressed relative to the top of the hole.
  • Top depth [other] (m): position of observation expressed relative to the top of the hole. The location is presented in a scale selected by the science party or the report user.
  • Sampling tool: tool used to collect sample
  • Data columns: header lists parameter measured and concentration units, followed by wavelength (for ICP-AES) and then analysis method.

Expanded ALKALINITY Report

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When the alkalinity titration finishes, the GRAN-METHOD window shows the slope information, correction factors, and the final alkalinity value (Figure 18).
Edit outlier Gran factor points, if necessary. When satisfied with the results, click Ok/Save to load the values into LIMS.


Health, safety and environment

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Microvalve buret tip, Metrohm 020683244, CM5129

LIMS component table

ANALYSISTABLENAMEABOUT TEXT
ALKALINITYSAMPLEExpExp: expedition number
ALKALINITYSAMPLESiteSite: site number
ALKALINITYSAMPLEHoleHole: hole number
ALKALINITYSAMPLECoreCore: core number
ALKALINITYSAMPLETypeType: type indicates the coring tool used to recover the core (typical types are F, H, R, X).
ALKALINITYSAMPLESectSect: section number
ALKALINITYSAMPLEA/WA/W: archive (A) or working (W) section half.
ALKALINITYSAMPLEtext_idText_ID: automatically generated database identifier for a sample, also carried on the printed labels. This identifier is guaranteed to be unique across all samples.
ALKALINITYSAMPLEsample_numberSample Number: automatically generated database identifier for a sample. This is the primary key of the SAMPLE table.
ALKALINITYSAMPLElabel_idLabel identifier: automatically generated, human readable name for a sample that is printed on labels. This name is not guaranteed unique across all samples.
ALKALINITYSAMPLEsample_nameSample name: short name that may be specified for a sample. You can use an advanced filter to narrow your search by this parameter.
ALKALINITYSAMPLEx_sample_stateSample state: Single-character identifier always set to "W" for samples; standards can vary.
ALKALINITYSAMPLEx_projectProject: similar in scope to the expedition number, the difference being that the project is the current cruise, whereas expedition could refer to material/results obtained on previous cruises
ALKALINITYSAMPLEx_capt_locCaptured location: "captured location," this field is usually null and is unnecessary because any sample captured on the JR has a sample_number ending in 1, and GCR ending in 2
ALKALINITYSAMPLElocationLocation: location that sample was taken; this field is usually null and is unnecessary because any sample captured on the JR has a sample_number ending in 1, and GCR ending in 2
ALKALINITYSAMPLEx_sampling_toolSampling tool: sampling tool used to take the sample (e.g., syringe, spatula)
ALKALINITYSAMPLEchanged_byChanged by: username of account used to make a change to a sample record
ALKALINITYSAMPLEchanged_onChanged on: date/time stamp for change made to a sample record
ALKALINITYSAMPLEsample_typeSample type: type of sample from a predefined list (e.g., HOLE, CORE, LIQ)
ALKALINITYSAMPLEx_offsetOffset (m): top offset of sample from top of parent sample, expressed in meters.
ALKALINITYSAMPLEx_offset_cmOffset (cm): top offset of sample from top of parent sample, expressed in centimeters. This is a calculated field (offset, converted to cm)
ALKALINITYSAMPLEx_bottom_offset_cmBottom offset (cm): bottom offset of sample from top of parent sample, expressed in centimeters. This is a calculated field (offset + length, converted to cm)
ALKALINITYSAMPLEx_diameterDiameter (cm): diameter of sample, usually applied only to CORE, SECT, SHLF, and WRND samples; however this field is null on both Exp. 390 and 393, so it is no longer populated by Sample Master
ALKALINITYSAMPLEx_orig_lenOriginal length (m): field for the original length of a sample; not always (or reliably) populated
ALKALINITYSAMPLEx_lengthLength (m): field for the length of a sample [as entered upon creation]
ALKALINITYSAMPLEx_length_cmLength (cm): field for the length of a sample. This is a calculated field (length, converted to cm).
ALKALINITYSAMPLEstatusStatus: single-character code for the current status of a sample (e.g., active, canceled)
ALKALINITYSAMPLEold_statusOld status: single-character code for the previous status of a sample; used by the LIME program to restore a canceled sample
ALKALINITYSAMPLEoriginal_sampleOriginal sample: field tying a sample below the CORE level to its parent HOLE sample
ALKALINITYSAMPLEparent_sampleParent sample: the sample from which this sample was taken (e.g., for PWDR samples, this might be a SHLF or possibly another PWDR)
ALKALINITYSAMPLEstandardStandard: T/F field to differentiate between samples (standard=F) and QAQC standards (standard=T)
ALKALINITYSAMPLElogin_byLogin by: username of account used to create the sample (can be the LIMS itself [e.g., SHLFs created when a SECT is created])
ALKALINITYSAMPLElogin_dateLogin date: creation date of the sample
ALKALINITYSAMPLElegacyLegacy flag: T/F indicator for when a sample is from a previous expedition and is locked/uneditable on this expedition
ALKALINITYTESTtest changed_onTEST changed on: date/time stamp for a change to a test record.
ALKALINITYTESTtest statusTEST status: single-character code for the current status of a test (e.g., active, in process, canceled)
ALKALINITYTESTtest old_statusTEST old status: single-character code for the previous status of a test; used by the LIME program to restore a canceled test
ALKALINITYTESTtest test_numberTEST test number: automatically generated database identifier for a test record. This is the primary key of the TEST table.
ALKALINITYTESTtest date_receivedTEST date received: date/time stamp for the creation of the test record.
ALKALINITYTESTtest instrumentTEST instrument [instrument group]: field that describes the instrument group (most often this applies to loggers with multiple sensors); often obscure (e.g., user_input)
ALKALINITYTESTtest analysisTEST analysis: analysis code associated with this test (foreign key to the ANALYSIS table)
ALKALINITYTESTtest x_projectTEST project: similar in scope to the expedition number, the difference being that the project is the current cruise, whereas expedition could refer to material/results obtained on previous cruises
ALKALINITYTESTtest sample_numberTEST sample number: the sample_number of the sample to which this test record is attached; a foreign key to the SAMPLE table
ALKALINITYCALCULATEDTop depth CSF-A (m)Top depth CSF-A (m): position of observation expressed relative to the top of the hole.
ALKALINITYCALCULATEDBottom depth CSF-A (m)Bottom depth CSF-A (m): position of observation expressed relative to the top of the hole.
ALKALINITYCALCULATEDTop depth CSF-B (m)Top depth [other] (m): position of observation expressed relative to the top of the hole. The location is presented in a scale selected by the science party or the report user.
ALKALINITYCALCULATEDBottom depth CSF-B (m)Bottom depth [other] (m): position of observation expressed relative to the top of the hole. The location is presented in a scale selected by the science party or the report user.
ALKALINITYRESULTacid_quantityRESULT acid quantity (mL): amount of acid titrant added to the sample during the alkalinity measurement.
ALKALINITYRESULTalkalinity (mM)RESULT alkalinity (mM): alkalinity expressed in millimoles of carbonate per liter of sample
ALKALINITYRESULTalkalinity-calib_asman_idRESULT alkalinity calibration ASMAN_ID: serial number of ASMAN record containing the alkalinity calibration file
ALKALINITYRESULTalkalinity-calib_filenameRESULT alkalinity calibration filename: file name of the alkalinity calibration file
ALKALINITYRESULTconfiguration_asman_idRESULT configuration ASMAN_ID: serial number of ASMAN record containing the alkalinity instrument configuration file
ALKALINITYRESULTconfiguration_filenameRESULT configuration filename: file name of the alkalinity instrument configuration file
ALKALINITYRESULTcorrection_factorRESULT correction factor: Gran titration correction factor determined for the instrument's specific setup and reagents
ALKALINITYRESULTpHRESULT pH (unitless): pH of the sample prior to acid titration
ALKALINITYRESULTrun_asman_idRESULT run ASMAN_ID: serial number of ASMAN record containing the run file
ALKALINITYRESULTrun_filenameRESULT run filename: file name of the run file
ALKALINITYSAMPLEsample descriptionSAMPLE comment: contents of the SAMPLE.description field, usually shown on reports as "Sample comments"
ALKALINITYTESTtest test_commentTEST comment: contents of the TEST.comment field, usually shown on reports as "Test comments"
ALKALINITYRESULTresult commentsRESULT comment: contents of a result parameter with name = "comment," usually shown on reports as "Result comments"

Archive Version

LMUG-pH_Alkilinity Autotitrator_UG-230220-1718-112.pdf

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