IAEA-158 , Marine Sediment (Kilbrannan Sound)

Inorganic , Sediment

  • Unit Size: 25g
  • Price per Unit: 120 EUR
  • Report: IAEA-AL-187
  • Date of Release: 2008-03-31
  • Reference Sheet: IAEA-158
  • Producing Laboratory: email

Origin and preparation of the material

In November 2004, a large quantity of marine sediment was collected from Kilbrannan Sound, south east of the island of Arran, in the Clyde River estuary, Scotland, UK. The material was collected and supplied to the IAEA through collaboration with the QUASIMEME Laboratory Performance Studies Programme.

The material was freeze dried by QUASIMEME and sent to IAEA MEL for further processing and bottling. The dried, material was hand sieved (315 μm) by MESL staff. Approximately 70% of particles had sizes below 100 μm. Aliquots of about 25 g were packed into glass bottles with polyethylene caps and sealed in plastic bags.

Approximately five hundred units of the material were prepared. The homogeneity of this material for trace elements was tested using a standard protocol and found to be satisfactory.                        

Recommended values for mass fractions
Trace elements

(based on dry mass)

Analyte
 
Recommended value1
[mg kg-1]
Standard deviation2
[mg kg-1]
Silver  0.180 0.033
Arsenic 11.5 1.2
Cadmium 0.372  0.039
Cerium   61.1 5.4
Cobalt 9.2 1.1
Chromium 74.4 5.8
Caesium 3.73 0.34
Copper  48.3 4.2
Europium 1.079   0.061
Lanthanum 30.2 2.2
Manganese 356 24
Nickel 30.3 2.9
Lead 39.6  4.7
Rubidium  82  10
Antimony  1.34   0.18
Samarium 4.94 0.32
Tin 5.84 0.82
Strontium 473 25
Uranium  2.42 0.28
Vanadium   73.0 3.7
Zinc   140.6 9.5

1) Mean values expressed on a dry-mass basis
2) Standard deviation of the mean

Recommended values for mass fractions
Matrix and minor constituents

(based on dry mass)

Analyte
 
Recommended value1
[mg kg-1]
Standard deviation2
[mg kg-1]
Aluminium  51.8 3.4
Calcium 64.9 5.8
Iron 26.3  1.4
Potassium   20.0 1.6
Sodium 23.8 1.0

  

Information values
(Based on dry mass)

Analyte
 
Information value1
[mg kg-1]
Standard deviation2
[mg kg-1]
Barium 1028 46
Bromine 224 15
Hafnium 6.23 0.4
Mercury 0.132 0.014
Lithium 32.5 3.7
Lutetium 0.306 0.03
MeHg3 0.00141 0.0004
Magnesium 10390 960
Molybdenum 4.87 0.8
Scandium 8.32 0.39
Tantalum 0.97 0.12
Terbium 0.63 0.097
Thorium 8.89 0.58
Titanium 4390 170
Ytterbium 2.08 0.18

1 Mean values expressed on a dry-mass basis
2 1 Standard deviation of the mean
3 Concentration reported as mg Hg kg-1


The assigned values were established on the basis of statistically valid results submitted by laboratories which had participated in international interlaboratory comparison organized in 2006.
The details concerning all reported results as well as the criteria for qualification may be found in the respective report (attached).

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