Page:NIOSH Manual of Analytical Methods - 9102.pdf/1

 ELEMENTS ON WIPES MW: Table 1

CAS: Table 1

METHOD: 9102, Issue 1

RTECS: Table 1

EVALUATION: PARTIAL

Issue 1: 15 March 2003

PROPERTIES: Table 1

OSHA : N/A NIOSH: N/A ACGIH: N/A

ELEMENTS: Arsenic Barium Beryllium Cadmium Cobalt Copper Chromium

Iron Lanthanum Lead Manganese Molybdenum Nickel Phosphorus

Selenium Silver Strontium Tellurium Thallium Vanadium Yttrium

Zinc Zirconium

SAMPLING SAMPLER:

9102

WIPE

MEASUREMENT TECHNIQUE:

INDUCTIVELY COUPLED ARGON PLASMA, ATOMIC EMISSION SPECTROSCOPY (ICP-AES) Elements above

FLOW RATE: N/A VOL-MIN: -MAX:

N/A

ANALYTE:

SHIPMENT:

Routine

ASHING REAGENTS:

SAMPLE STABILITY:

Stable

CONDITIONS:

BLANKS:

2 to 10 field blanks per set

ACCURACY RANGE STUDIED:

Not Studied

BIAS:

Not determined

OVERALL PRECISION (Ö r T ):

Not determined

ACCURACY:

Not determined

Conc. HNO3, 20 mL; and conc. HClO4 , 1 mL Room temperature, 30 min; 150 °C to near dryness

FINAL SOLUTION:

4% HNO3, 1% HClO4 , 10 mL

WAVELENGTH:

Table 2

BACKGROUND CORRECTION:

Spectral wavelength shift

CALIBRATION:

Elements in 4% HNO 3, 1% HClO4

RANGE:

Table 2

ESTIMATED LOD: Table 2 PRECISION ( þ r ):

Table 2

APPLICABILITY: This method is a simultaneous elemental analysis, not compound specific. Verify that the types of compounds in the samples are soluble with the ashing procedure selected. Because this method deals with wipes samples it is important to keep in mind that the values obtained are qualitative. INTERFERENCES: Spectral interferences are the primary interferences encountered in ICP-AES analysis. These are minimized by judicious wavelength selection, interelement correction factors and background correction. OTHER METHODS: This method supplements NMAM Method 7300 [1]. Additional element methods, whether single element or multi-element, may be found in NMAM. Alternate instrumentation includes flame atomic absorption spectroscopy for certain elements and graphite furnace AAS for increased sensitivity.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition