Citation:

PANGAEA.755846, Supplement to: Bekov, GI et al. (1983): Laser stepwise photoionization of atoms, a direct method for determining aluminum concentration in natural water. Oceanology, 23(1), 130-134

Name: (Table 2) Concentrations of dissolved aluminum in interstitial water from sediments of the Indian Ocean
Published: 1983
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Results are presented of application of laser stepwise photoionization of atoms in combination with thermal atomization of matter in vacuum for direct determination of aluminum dissolved in sea and interstitial waters. Dry residue from evaporation of 40 ?l sea water was atomized in a crucible at 1800°C, and aluminum atoms in the beam thus formed were energized into Rydberg state in two steps by two tunable dye laser beams; the atoms were then ionized by an electric pulse and resulting ions were recorded by secondary emission electron multiplier (ion detector). Ionic signal dependence on sample vaporization time was studied. The procedure is suggested for separating out a selective signal in a single measurement. Dissolved aluminum concentrations in interstitial waters of the Indian Ocean and in waters of the river-sea zone were determined using preliminarily plotted calibration characteristics for aluminum solutions in deionized and sea waters. The minimum detectable Al concentration in seawater was 1 ?g/l that corresponds to 40 pg of Al in a sample.

Project(s):

Archive of Ocean Data (ARCOD)

Coverage:

Median Latitude: -12.308333 * Median Longitude: 76.762500 * South-bound Latitude: -26.633333 * West-bound Longitude: 67.266667 * North-bound Latitude: 3.050000 * East-bound Longitude: 102.316667

Minimum DEPTH, sediment/rock: 0.075 m * Maximum DEPTH, sediment/rock: 0.075 m

Event(s):

Bek-83-1 * Latitude: -8.750000 * Longitude: 102.316667 * Elevation: -5300.0 m * Location: Indian Ocean * Campaign: * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)

Bek-83-2 * Latitude: 3.050000 * Longitude: 80.166667 * Elevation: -4300.0 m * Location: Indian Ocean * Campaign: * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)

Bek-83-3 * Latitude: 0.066667 * Longitude: 80.033333 * Elevation: -4600.0 m * Location: Indian Ocean * Campaign: * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Depth, top/min	Depth top	m	Bekov, Georgy I
4	Depth, bottom/max	Depth bot	m	Bekov, Georgy I
5	Sediment type	Sediment		Bekov, Georgy I
6	Aluminium	Al	µmol/l	Bekov, Georgy I	Laser stepwise photoionization of atoms
7	Aluminium, standard deviation	Al std dev	±	Bekov, Georgy I	Calculated

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

40 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Depth sed [m]	4 Depth bot [m]	5 Sediment	6 Al [µmol/l]	7 Al std dev [±]
Bek-83-1	0.075	0.15	pelagic mudsilt	0.63	0.07
Bek-83-2	0.075	0.15	clayey mud	0.52	0.07
Bek-83-3	0.075	0.15	clayey mud	1.11	0.33
Bek-83-4	0.075	0.15	carbonaceous ooze	1.26	0.33
Bek-83-5	0.075	0.15	siliceous ooze	1.07	0.11
Bek-83-6	0.075	0.15	metalliferous mud	8.15	0.93
Bek-83-7	0.075	0.15	metalliferous mud	2.00	0.22
Bek-83-8	0.075	0.15	metalliferous mud	3.71	0.41