Read Pulse w ADC

[orlandoG]

Hello!
Can someone help me? Here is what I am doing. I have 4 NPN transistors (base) connected to PORTB 0-3 (a basic emmiter follower) . I am pulsing each transistor in a state machine and reading back the (load) voltage with the built in ADC and graphing the data on a GUI program.

Here is the problem! I am not getting back ALL the pulses I send out. (Missing data) I should see all the pulses at the load voltage level. I'm thinking the ADC is not fast enough or its doing its routine before the ADC can read it

Does anyone have a better way to do this? If someone can figure this out can you post example code. I have posted the working code below

Thanks In Advance!

*******************************************************************************/
#include <16F873.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#device adc=10
#use delay(clock=20000000)
#use rs232(baud=38400,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8)

/******************** Local Variable Declarations *****************************/
int Selected=0;
enum Port {B0=PIN_B0,B1=PIN_B1,B2=PIN_B2,B3=PIN_B3};

/******************** Initialize Ports *****************************************/
void Initialize(void)
{
setup_adc_ports(ALL_ANALOG);
setup_adc(ADC_CLOCK_INTERNAL);
}

/******************** Send Out A Pulse *****************************************/
void Pulse(int port,int delay)
{
output_low(port);
delay_ms(delay);
output_high(port);
delay_ms(delay);
}

/******************** Read Analog To Digital Converter *************************/
void ADC(int channel)
{
long Raw_Value;
set_adc_channel(channel);
delay_ms(10);
Raw_Value = read_adc();
printf("CH%d,%Lu \r",channel, Raw_Value);
}

/******************** Pulse and Read Voltage From Each Load *************************/
void AnalyseLoad(void)
{
switch(Selected)
{
case 0:
ADC(0); //Read Supply Voltage
Selected=1;
break;

case 1:
Pulse(B0,1); //Pulse Load 1
ADC(1); // Read Voltage
Selected=2;
break;

case 2:
Pulse(B1,1); //Pulse Load 2
ADC(2); //Read Voltage
Selected=3;
break;

case 3:
Pulse(B2,1); //Pulse Load 3
ADC(3); //Read Voltage
Selected=4;
break;

case 4:
Pulse(B3,1);} //Pulse Load 4
ADC(4); //Read Voltage
Selected=0;
break;
}
}

/******************** Main Loop ************************************************/
void main()
{
Initialize();
while (TRUE)
{
AnalyseLoad();
}
}

[PCM programmer]