Initial Reports, Volume 209 Ms 209IR-102 Chapter 2, Table T6. Analytical conditions for ICP-AES analyses. Notes: ICP-AES = inductively coupled plasma-atomic emission spectrometry. N = number. * = limit of detection reported as oxide (wt%). ** = from Shipboard Scientific Party, 2002 (Leg 197). Instrument detection limits represent 3 times the instrument blank. Element Wavelength (nm) Integration time/calculation point (s) Photomultiplier voltage Photomultiplier gain Increment between points (nm) Calculation points (N) Limit of detection (ppm) Al* 396.152 1.0 720 1 0.0027 5 0.03 Ba 455.403 1.0 730 10 0.0027 5 39 Ca* 393.366 1.0 350 1 0.0027 5 0.06 Co 228.616 1.0 990 100 0.0027 5 32 Cr 267.716 1.0 860 100 0.0027 5 41 Cu 324.754 1.0 690 10 0.0027 5 2 Fe* 259.940 1.0 560 10 0.0027 5 0.13 K* 766.490 1.0 990 100 0.0027 5 0.01 Mg* 285.213 1.0 600 10 0.0027 5 0.41 Mn* 257.610 1.0 580 100 0.0027 5 0.001 Na* 589.592 1.0 610 10 0.0027 5 0.03 Ni 231.604 1.0 990 100 0.0027 5 165 P 178.229 1.0 933 0.0027 5 0.06** Si* 251.611 1.0 570 10 0.0027 5 0.22 Sr 407.771 1.0 560 10 0.0027 5 5 V 292.402 1.0 960 100 0.0027 5 5 Y 371.029 1.0 620 100 0.0027 5 2 Zr 343.823 1.0 640 100 0.0027 5 2 Ti* 334.941 1.0 570 10 0.0027 5 0.01 Sc 361.384 1.0 660 100 0.0027 5 0.4