Table T6. ICP-AES run parameters, Leg 197.
Element
Instrument
detection
limit
(ppb)
Wavelength
(nm)
Slit
width
(nm)*
Integration
time per
calculation
point
(s)
Voltage
(V)
Mode
Increment
between
points
(nm)
Calculation
(points)
Al 2.8 396.152 20/16 0.5 731 2 0.0270 5
Ca 0.2 393.366 20/16 0.5 351 2 0.0180 5
Fe 6.2 259.940 20/16 4.0 732 5 0.0020 1
K 60 766.490 20/16 Alk 0.5 993 2 0.0022 5
Mg 1.6 285.213 20/16 4.0 553 5 0.0022 1
Mn 1.4 257.610 20/16 4.0 643 5 0.0020 1
Na 69 589.592 20/16 Alk 0.5 632 2 0.0021 5
P 272 178.229 20/16 0.5 933 2 0.0018 5
Si 12 251.611 20/16 0.5 612 2 0.0028 5
Si 16 212.412 20/16 0.5 652 2 0.0030 5
Si 27 288.158 20/16 0.5 623 2 0.0029 5
Ti 3.8 334.941 20/16 0.5 651 2 0.0018 5
Ba 1.3 455.403 20/16 4.0 622 5 0.0250 1
Co 6 213.856 20/16 0.5 625 2 0.0021 5
Cr 7 267.716 20/16 4.0 993 5 0.0190 1
Cu 5.4 324.754 20/16 0.5 625 2 0.0019 5
Nb 36 309.418 20/16 0.5 625 2 0.0030 5
Nb 71 322.548 20/16 0.5 625 2 0.0028 5
Ni 15 231.604 20/16 0.5 990 2 0.0021 1
Sc 1.5 361.384 20/16 4.0 753 5 0.0018 1
Sr 0.4 407.771 20/16 0.5 572 2 0.0026 5
V 7.5 292.402 20/16 4.0 993 5 0.0021 1
Y 3.5 371.030 20/16 4.0 693 5 0.0027 1
Zn 1.8 213.856 20/16 0.5 625 2 0.0030 5
Zr 71 343.823 20/16 0.5 673 2 0.0018 5

Notes: * = the widths of the entrance and exit slits. † = the interval in nanometers between each of the calculation points in Mode 2, or the calculation window (in nanometers) that constitutes the single "point" in Mode 5. Alk = the sheath gas flow is increased from 0.15-0.2 to 0.8 L/min for analysis of these elements.