SOFT TISSUE
(WET FROZEN OR DAY)
CUT INTO SMALL PIECES
250-g PORTION
IN 2-1 PLASTIC BOTTLE
HNO3, HF, CAP LOOSELY (CAUTION)
ZN WATER BATH TO REACTION.
SUBSIDENCE
REACTION MIXTURE
H3803,4 20MIN,
TRANSFER TO BREAKER, BOIL
DOWN, COOL
SOLUTION + FAT + HNO3 + H3BO3
FILTER
DISCARD OR PROCESS OPTION
vy
FAT .
ASH 425°C
HF, HNO3z - H3803 DISS.
DISSOLVED
lO0O-g
SAMPLE
soln
a. ALIQUOT FOR TU ANALYSIS
b. STORE WITH VENTED CAP. (CAUTION)
FIGURE 1.
WET DISSOLUTION OF SOFT TISSUE
279